Overview:
- Estimated achievement difficulty: 7/10 [hugely skill dependent] [Achievement Difficulty Rating]
- Offline: 29 [1000gs.png]
- Online: 0
- Approximate amount of time to 1000gs.png: 35-45+ hours [hugely skill and somewhat luck dependent] [Estimated Time to 100%]
- Minimum number of playthroughs needed: 2 technically, but 3 is recommended
- Missable achievements: 7 - five achievements for defeating the five remixed bosses (Chemophobia (40G), Ostiophobia (40G), Scotomaphobia (40G), Astrophobia (40G), and Syngenesophobia (100G)), one achievement for utlizing the class unlocked for completing those five achievements (Katagelasticism (30G)), and then Thanatophobia (100G)
- Does difficulty affect achievements: No difficulty option
- Unobtainable/glitched achievements: None
 
For questions, comments or feedback, please visit the Achievements and Guide Discussion thread.

Introduction:
Welcome to Rogue Legacy, a 2D roguelite with heavy action and platforming. Like all roguelites, each run through the game is randomized to an extent, and each death means you have to start a new run (sort of). Each death requires you to play as one of your children to continue on your legacy, and each child has a unique combination of class, traits, and spells. You can use the money obtained during runs to upgrade your manor with more skills, all of which are permanent upgrades across all runs. You also quickly gain the ability (via the unlockable Architect) to lock the castle down so it stays the same as your last run, but at the cost of 60% of the gold value. It's quite a simple game (you primarily can only jump and attack with your sword), but it can be quite difficult. Like many roguelikes/-lites, the game is hardest at the beginning, before you have upgrades, know the rooms, know the enemies, etc. But as you play, fail, and collect gold to get more upgrades, you'll get stronger, learn enemy patterns, etc., and the game will become easier. That being said, this is a pretty challenging completion with some of the boss fights, so be prepared to invest a decent amount of time getting better at this game if you want the completion. Let's get started.

Playthrough 1 - All Bosses, Remixed Boss, and Miscellaneous Achievements:
NOTE: 
Once you beat the final boss, you no longer have access to your first playthrough; you are immediately forced to start your New Game+ playthrough. Therefore, DO NOT kill the final boss until you unlock all of the achievements discussed in this step. Most importantly, all missable achievements listed above other than Thanatophobia (100G). Runes are blueprints are very handy too, but there are very easy ways to farm/grind out both regardless of which playthrough you're on.

Your first playthrough is going to be long and difficult. Spend the first 5+ hours not even worrying about achievements. Just learn the gameplay, the enemies, the rooms,  etc., collecting as much gold as you can so that you can keep upgrading your manor after each run, and/or buying new gear and runes. You'll unlock the Architect pretty early, and while it may be tempting to use for a variety of reasons, I highly recommend that you do NOT use the Architect at all for quite some time. The more you use it, the less gold you'll get, so the slower you'll level up, and the less experience you'll get from different layouts and enemies. Resist the urge, and just start a new run every time. Don't worry about dying at all. It's going to happen a lot. As long as you can afford at least one new skill in the manor, it wasn't a waste of a run (but don't worry - you'll have plenty of wasted runs).

Back to the manor, there is an achievement, Decidophobia (30G), for putting a point in every spot in the manor. I recommend focusing on this first, because every time you buy a skil point, the cost of all other points goes up. This can make some of the later more expensive ones extremely expensive if you buy tons of other points first. For example, I invested a lot in Attack, Equip, Health, and Armor Up, and my final skill point at the top of the manor costed 5400 gold for just the one point. Early one, that is a decent amount of money to build up before you're very good at this game. So spread your points out pretty evenly so that you can buy one of each skill without their costs getting out of hand. Once you unlock that achievement, feel free to invest however suits your playstyle.

A large chunk of achievements will come naturally as you progress, but there are a few miscellaneous ones that you can make it a point to get out of the way early on. Specifically:
 
  • Atelophobia (5G) - choose a Hero (after you die) with no traits listed
  • Alektorophobia (5G) - choose a Hero (after you die) with the Alektorophobia trait. Read the achievement solution for more info to knock this achievement out
  • Coulrophilia (30G) - keep an eye out for the clown's carnival game, and when you find one, if it's the axe throwing game, refer to this achievement solution for a guaranteed way to win it every time
All of the other miscellaneous achievements will come naturally as you progress through your first playthrough.

Now on to the missable achievements for the remixed bosses. How the remixed bosses work is the same for each one: once you kill a boss, it is dead for all future runs. Once it's dead, the Spiritual Shines that you'll encounter randomly have a chance to give you an Obol when you pray at them. So, after beating Khidr, you have a chance to get Khidr's Obol from a Spiritual Shrine. Same thing for all other bosses. Once you have that boss's Obol, after you die, talk to Charon at the castle gate to give him the Obol automatically. He will reopen that boss's door. It will stay open for all subsequent runs, so there's no need to make a beeline to it to try to fight it immediately. The two big differences when you fight remixed bosses are:
 
  1. You play as a set hero with fixed stats and abilities. It therefore doesn't matter when you attempt these, since you can't be over- or underleveled when you fight them. However, they are significantly more difficult, so the sooner you attempt them, the less you'll be prepared for the increased demand, potentially.
  2. If you die while fighting them, you get put right back outside the boss door with no loss to your gold or anything else. There is no penalty from dying to the remixed bosses, and you can attempt them over and over until you beat them.
Getting the Obol itself is complete RNG, so definitely hold on to one when you find it so you can make sure the boss door reopens when you talk to Charon. It's then up to you when you want to attempt the fights against the remixed bosses. I did it as soon after the original fight as possible to ensure the patterns were still fresh in my mind, but you might want to get better at double+ jumping and dashing first. Refer to Ostiophobia (40G), Chemophobia (40G), Astrophobia (40G), and Scotomaphobia (40G) for more details and tips for these remixed boss fights. These are the hardest fights in the game, so just keep that in mind when attempting them.

Either way, you'll going to want to work your way through all four normal bosses, and then fight and beat all four remixed bosses, all on your first playthrough before you fight the final boss. Once you've beaten all four remixed bosses, now the Spiritual Shrines have a chance to reward you with the Traitor's Obol item. Just like before, you need to die while you have this Obol, and give it to Charon at the entrance to the castle. Once you do, he will open up all four boss doors again. Once again, they will all stay open. You can now enter any one of them (doesn't matter which) to fight the remixed version of the final boss. Refer to Syngenesophobia (100G) for info and tips about this boss fight. Once you beat that fight, you'll unlock the secret Traitor class. This class seems to be quite rare when choosing a new hero. You now need to die until you get the option for a Traitor class. Once you get a Traitor class, head to the final boss now as a Traitor, and you'll unlock Katagelasticism (30G) right at the start of the fight. That's all of the missable stuff out of the way.

Before you finish your first playthrough off, consider grinding out all of the remaining gear available in your first playthrough, and getting all of the runes in the game. Both Disposophobia (90G) (for blueprints) and Gnosiophilia (50G) (for runes) have easy ways to grind them out. The only reason I mention doing it now is because NG+ is definitely more difficult, and it'll be beneficial to have more gear and runes at your disposal so it doesn't feel as difficult.

As a point of reference, I was right around level 100 when I finished off my first playthrough, and it was a relatively simple transition to NG+. You shouldn't have many achievements left at this point.

Playthrough 2 - NG+
There are two reasons we need to do a NG+ playthrough: to unlock Geminiphobia (50G) for beating NG+, and because you can't get the higher level gear blueprints unless you're at least in NG+. There are a few things that you absolutely want to take care of during NG+:
 
  • If you somehow went your entire first playthrough without getting Coulrophilia (30G), keep an eye out for the axe game again here.
  • Finish off any minibosses you haven't defeated for Zoophobia (30G) if you haven't unlocked that yet. If you run into one you haven't beaten yet and you die, use the Architect to lock the castle down, travel right back there and attempt again. 
  • You will undoubtedly come across at least one miniboss during your NG+ playthrough. As soon as you do, ensure you take advantage of the very simple exploit detailed in Disposophobia (90G) to very quickly grind out all of the available blueprints in NG+. You should have every blueprint for all five types aside from the last two for each one. There are only two ways to get those last ones, which I'll discuss below.
  • Finish off all the runes if you haven't collected them all already. Refer to Gnosiophilia (50G) for an easy way to mop them up, since you're guaranteed to find multiple fairy chest rooms per run.
As for the last two blueprints for each armor type, there are only two ways to get them: find them in NG++, or find them in a secret room from Calypso's Compass. If you're not familiar with this latter method, the Spiritual Shrines have a very small chance to give you Calypso's Compass. This puts a compass on the top center of the screen. If you follow the arrow to the room it indicates, and stand at the correct spot where the arrow spins around, you'll be prompted to enter a secret room. Inside will always be two gold chests, and during NG+ there is a chance for these chests to contain that final high level gear you're missing. This is obviously a huge amount of RNG and luck to both get the compass multiple times and get the blueprints you need. I therefore highly recommend not bothering with this, and instead finish off NG+ to unlock Geminiphobia (50G) and then start a NG++ run.

Mini Playthrough - NG++ for Blueprints
All you're doing in this playthrough is finding those last few blueprints. Ideally, find a miniboss room and use the same exploit in Disposophobia (90G) to farm them all once you do. But, open all chests you find since all of them have a chance to drop your missing blueprints.

Once you've gotten all the blueprints, you will need to die and return to the Smithy to unlock the achievement. If, by some absolute miracle, you have done all of this without playing for 20 hours to unlock Somniphobia (30G), now is your last chance since it doesn't carry over into the next step. Idle your game or play for fun until it unlocks.

That wraps up everything on this save file. You should only have one achievement left: Thanatophobia (100G). If you're missing anything else, refer to the guide for how to unlock it.

Playthrough 4 - Fresh Save File for Thanatophobia (100G) 
Now it's time for the most difficult achievement in the game: beat the game starting fresh, with 15 or less deaths, without using the Architect. This could be extremely challenging, but thanks to some exploits it's not as bad. It's by no means easy, but it's at least manageable now. I'm not going to go into much detail here because I have already gone into a huge amount of detail in Thanatophobia (100G), where I cover all of the known exploits, give tips, and a general walkthrough for how I progressed and accomplished this achievement. There is a ton of info for this achievement all over the place, some of which is outdated. I have gone through it all and compiled everything useful and still applicable that I could find. Refer to Thanatophobia (100G) for it all .Good luck!

Conclusion:
Rogue Legacy is a very fun and addictive game. You'll find yourself continually jumping right back in for another run every time you die, so you can keep upgrading and progressing. There is a pretty good amount of challenge in this game, but I would say it's all fair. Most of the hardest fights and achievements have some tips or strategies to make them easier, but no matter what, you'll need to get good enough to complete this game. With everything provided in the guide, I do believe this is manageable for all average gamers. I had a blast with this game, and I hope you do too. If you managed those tough achievements, then congrats on a very well earned completion!
 
[XBA would like to thank Necrophage33 for this Roadmap]

Rogue Legacy Achievement Guide

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There are 29 achievements with a total of 1000 points

  • Choose a hero with no traits.

    As the description says, when you are choosing a hero, such as after you die, you'll need to pick one with nothing listed under Traits. This comes down entirely to RNG, since heroes almost always have traits. You will assuredly happen upon multiple heroes with no traits across all of your time with this game though, so just keep an eye out for one and choose it when you have the chance.
  • Open your very first gold chest.

    There are only two ways to find gold chests: beating a miniboss, or getting Calypso's Compass from a Shrine and following it to the secret room it leads to, which will always contain at least one gold chest. Calypso's Compass is extremely rare, but you'll need to defeat all five minibosses for Zoophobia (30G), so this achievement will unlock naturally after beating your first miniboss and opening its chest.
  • Read the last journal entry.

    Story-related; cannot be missed.

    This achievement used to have a description stating you need to read all journal entries, but it was updated to reflect all you actually need to do to unlock it: read the final journal entry, which is located right outside the door to the final boss. You actually are forced to read this journal entry to make the door to the final boss open, so this achievement is actually story related and can't be missed.

    As a side note, you can actually unlock this achievement before reaching the final boss. If you final all 24 other journal entries throughout your multiple attempts, and then read the journal in the starting room of the castle, this achievement will also unlock then.
  • Die 20 times or more.

    This is cumulative across an entire save file, and you will undoubtedly die far more than 20 times before beating the game. I had close to 100 deaths by the end of my first playthrough.
  • Have one rune equipped in every item slot.

    Refer to Gnosiophilia (50G) for unlocking all runes. Once you have a rune available in each of the five armor slots, purchase it to equip it, and once you have a rune equipped in each of the five armor slots, this achievement will unlock.
  • Beat one of the clown's games at least once.

    The clown can spawn randomly in any of the four regions of the game. It is not restricted just to the castle rooms. When you do finally find a clown minigame room, it will be either a dagger throwing game or an axe throwing game. The dagger throwing game is completely down to skill (no video or guide will help), so that is unlikely to be where you get this achievement. The axe game has static targets, allowing for a surefire way to win. Rather than try to describe in text, refer to the video below to see where to stand to throw each axe. Full credit to the creator of the video.
  • Put at least one point in every skill in the manor.

    There are around 30 different skills in the Manor that you'll need to invest in for this achievement. Some skills are far more expensive than others. On top of that, every time you buy a skill or put another point in one, the price of every skill in the Manor increases. Therefore, the cheapest way to get this and to minimize the amount of money you need to amass in a single run is to never put more than one point in a skill until you unlock this achievement. When you first start the game though, that isn't really practical, as you'll need to put points in health, attacks, and armor to be able to keep progressing. My recommendation would be to prioritize expensive skills as soon as they become available to purchase, because the longer you put off buying them, the more expensive they'll be after buying skills and points elsewhere.
  • Find all blueprints (purchase not necessary).

     
    There are a total of 73 blueprints in the game (75 gear slots, but you start with two already unlocked). As the description says, you just need to find all of the blueprints, and don't need to buy them all from the Smithy. Also worth noting is that this achievement doesn't unlock until you talk to the Smithy after having all blueprints. So don't be alarmed when this achievement doesn't unlock as soon as you obtain your last blueprint. You'll need to Die, then talk to the Smithy to unlock this.

    Another big thing to be aware of is that it is impossible to find all blueprints on your first playthrough. In a regular New Game, only the first three columns of gear can drop. There is a very small possibility of getting the first one in the fourth column, but that's the max possible in New Game. In New Game+, all of the gear in New Game can drop, plus all of column four and the first in column five. The final two pieces of gear in each category are the Dark pieces, and there is only one way to get them to drop in NG+: in a gold chest inside a secret room accessed if you get Calypso's Compass from a Shrine. This item is extremely rare, so it's not worth counting on it. Instead, you're better off completing NG+ (you need Geminiphobia (50G) anyway) and then starting NG++. In NG++, all gear can drop from chests. So realistically, for this achievement, you're going to need to reach NG++ to access the final blueprints.

    While blueprints are normally down to RNG entirely, there is actually an amazing exploit that you can use to get all blueprints available in that playthrough in a matter of minutes. It just requires some luck, as it requires you to find a miniboss room. Here are the steps:
     
    1. Locate the miniboss room and kill the miniboss so it drops a gold chest
    2. Open the gold chest
    3. DO NOT leave the room or quit to the main menu
    4. Press the Guide button on your controller and force close the game app
    5. Launch the game and continue your game. You'll be back in the first room of the castle but will have kept the contents of the chest
    6. Warp back near the miniboss room and head back inside
    7. The gold chest will be there, closed, allowing you to open it again for another reward
    8. Repeat the above steps over and over
    With gold chests, you should be getting blueprints most of the time, and sometimes permanent stat boosts. The amount of blueprints you can get will depend on which area of the game you do this in (i.e. the Castle has far less available blueprints than if you do this exploit in a miniboss room in the Dungeon, for example).

    You will undoubtedly come across at least one miniboss during your first playthrough of this game, so you can make use of this exploit on your first playthrough to get over half of the available blueprints. Then, on NG+, use this same exploit to get all available blueprints in NG+. You won't need to actually play through NG++ for any reason, so you'll just need to play around until you either get the last blueprints legit or until you find a miniboss room in NG++.
  • Find all the runes (purchase not necessary).

     
    Unlike blueprints, all runes can be obtained in your first playthrough. The only way to obtain runes is by opening fairy chests, of which you'll unavoidably find a number of during each of your runs. Opening a fairy chest almost always requires you to complete some sort of objective, such as killing all enemies, taking no damage, or not jumping. Here's a quick summary of each objective type and how to complete it.
     
    • Kill All Enemies (version 1): this is the simplest type of chest, as you'll enter a room with usually a ton of enemies, typically powerful, and you just need to kill them all to be able to open the chest. Like with all rooms, dead enemies stay dead when you leave, so I recommend popping up, killing one or two enemies, leave to reset enemies, then reenter and repeat until you've killed all enemies.
    • Kill All Enemies (version 2): this is one of the trickier types of fairy chest, as you'll find enemies behind walls or under the floor and you can't actually reach them to hit them. The only way to complete these objectives is to have the correct spell equipped. For example, the room with a single skeleton below you can be completed with either the crow spell (hits all enemies on screen) or the flame barrier spell (circling flames will reach the skeleton). Others require the chakram, or the scythe, etc.
    • Take No Damage (version 1): one type of room that requires no damage involves either enemies shooting at you or spike balls bouncing around. These rooms are entirely skill based. Be patient and take your time, as that's really all I can help with. Of course, being a dwarf will make it far easier to avoid damage.
    • Take No Damage (version 2): the other type involves a room with spikes. These again are entirely skill based normally, BUT you can make these rooms trivial if you have a Dragon class. You can simply fly (literally) past all the spikes and complete these rooms with no effort
    • No Jumping: these rooms are intended to be completed either with a dash rune, or with luck. However, you can bypass both requirements by using a Dragon class. Flying doesn't count as jumping, so the Dragon class makes every one of these rooms trivial
    • No Fighting: as it says, simply reach the chest without attacking. You can take damage, so if you're strong enough, you can simply tank all the damage being thrown at you and just reach the chest to open it
    • No Looking: definitely the trickiest one until you know the trick. The only way to get to these chests is to have a dash rune equipped, face away from the chest, then dash backwards until you reach it
    • Reach Me In Time: you typically have 5 seconds to get to the chest, which just requires you to walk over to it, with enemies in your way. As long as you don't stop moving you'll always reach it in time
    • There is a type of fairy chest room with no objective, and the chest is far off behind a wall (offscreen and not visible). The only way to reach this chest is with a dwarf character, through the dark wall that you can pass through
    • Lastly, there is one other room with no objective, and you may not even know it contains a fairy chest unless you look at your (mini)map. The chest is in the ceiling or floow and is invisible aside from a very faint twinkle. You can reach it with any character though, by jumping/dropping through the dark part of the floor/ceiling and then pressing up on the twinkle to open the chest.
    So as you can see from the above, many fairy chests require many different types of heroes and spells, such as dwarves, dragons, spells, etc. You will get a ton of runes naturally as you progress through your two playthroughs on a single save file, but there is a very easy way to ensure you get all fairy chests in each run: exploit the Architect. Do a run through a new castle, add each room to your map, get whatever fairy chests you can, and whenever you can't get one, make a note of what you need (i.e. someone with chakram, a dwarf, etc.). Once you've fully explored and gotten all the chests you can, kill yourself and then look for a hero with what you need. Use the Architect to lock the castle, warp near the fairy chest and return to it with the requirements so you can reach/open it. Repeat killing yourself to get a new hero you need and using the Architect. This allows you to open every fairy chest each time. Every fairy chest will always give you a new rune, so this method allows you to collect every rune in the game very easily.

    I recommend doing this at the end of your first playthrough. You'll have gotten many along the way, you'll be strong enough to explore fully without much worry, and you'll have all of the classes unlocked to be able to reach all chests.

    Note that once you've collected the last rune, you need to die and return to the Enchantress to unlock this achievement.
  • Have one piece of equipment in every item slot.

    Refer to Disposophobia (90G) for unlocking all blueprints. Once you have gear available for each of the five armor types, purchase it to equip it, and once you have gear equipped for each of the five armor types, this achievement will unlock.
  • Reach level 50 or higher.

    Leveling up in this game happens each time you buy a new skill in the Manor, and is completely unrelated to killing enemies. One skill (or skill point) equals one level, so you'll need to buy 50 skills across the entire Manor to reach level 50 and unlock this achievement.

    This achievement will come naturally during your first playthrough, as there's absolutely no way you'll be able to beat all bosses and beat the game without reaching level 50. I was around level 100 at the end of my first playthrough. My recommendation would be to never use the Architect during your first playthrough, as that will severely limit the amount of money you collect for upgrades. Always start fresh and fully explore the castle, then the Forest, etc., to amass thousands of gold each run so you can always afford more upgrades, and you'll reach level 50 in no time.
  • Earn your very first Enchantress rune.

    Refer to Gnosiophilia (50G) for obtaining all runes. This achievement will obviously unlock when you get your first one.
  • Play the game for at least 20 hours.

    This achievement is cumulative for an entire save file; it does NOT carry between save files. You will assuredly unlock this achievement well before finishing your NG+ playthrough for Geminiphobia (50G) on your main save file. As a point of reference, I unlocked this achievement right at the end of my first playthrough, before starting my NG+ playthrough.

    If you somehow don't unlock this achievement naturally, you can idle by the Smithy and Enchantress where it's safe, or in any room in the castle, until this achievement unlocks.
  • Defeat all the minibosses.

    This achievement is cumulative across your entire save file, meaning if you don't defeat all the minibosses on your first playthrough, you can mop this up in your NG+ playthrough.

    There are a total of five minibosses that count for this achievement (there are other large versions of normal enemies, but they don't count as minibosses). Each one is indicated by a pink question mark on your map. They are:
     
    1. Stallos - a giant version of the fake paintings that rotate around when you hit them. This one takes up a large chunk of the screen while spinning around, and then also shoots projectiles in the four cardinal directions. It's best to stay in the center of the room so it spins around you. Jump and hit it with your sword while it's going up or down on the sides, and ensure you avoid the projectiles. Stay defensive with all of the projectiles that'll be flying around
    2. Botis - a giant version of the Knights that swing their swords to shoot projectiles at you. He has the same attacks as the small version - he either shoots projectiles or dashes at you, both of which are telegraphed pretty clearly. When he dashes, he always does three dashes in a row, so be prepared for that. When he shoots projectiles, he shoots five, so jump through the gaps in them and you should be fine. After each of his attacks, you should be able to get in a solid two or three hits before retreating to avoid his next attack
    3. Amon and Barbatos - a giant pair of the flying wizard enemies, except these two can each use any of the three possible elements: fireballs, ice ball explosion, or a stone spike from the ground. I found it best to make heavy use of the bottom areas on the far left and far right. Hide in those rooms to avoid their attacks, then pop out after each set of fireballs or ice explosions to hit one or both a few times. I would only retreat to those rooms to avoid the fire and ice. If it's a stone spike, just move aside and keep hitting them. Once one is dead, it becomes very easy to kill the other
    4. Berth and Halphas - a giant pair of the skeletons that throw bones at you. These are by far the easiest miniboss. Simply pick one, stand next to it, and just hit it over and over until it's dead, then repeat with the other. You should only have to move to dodge a bone every now and then, but in general they're really bad at hitting you
    5. Stolas and Focalor - a giant pair of the plants that shoot the green projectiles up in the air, both located on a platform at the top of the room. This is the toughest one, because their movements and all the projectiles can make it very chaotic. If you're strong enough or a Barbarian, you could just stand on the platform, tank their hits, and just hit them over and over until they die. Otherwise, stand under them, stick to one side of the room to make it easier to dodge projectiles, and jump up and hit them when they come to your side
    You will assuredly encounter all five of these on one save file by the time you finish your two required playthroughs. If you find yourself down to one or two, when you encounter one, if you die and don't beat it, don't hesitate to use the Architect to lock the castle so you can quickly and easily head back to that room to attempt to defeat it again. As soon as you've killed the fifth one, this achievement will unlock.
  • WITHOUT using the Architect, complete the game dying 15 times or less

    *MISSABLE*

    If you don't do this on your first playthrough, you'll need to start a new game on a fresh save file to attempt it. It is NOT POSSIBLE to complete this achievement on New Game+ and beyond, because your death count and Architect usage carry over.

    There is a ton of information available across the internet relative to this achievement, and I have done my best to consolidate it all here. First, I will go through the various exploits that are available, all of which you can take advantage of to make this easier. After that, I will go through general tips and advice that you should be using throughout your playthroughs, regardless of which and how many exploits you use, and finally a rough walkthrough of how I progressed, which I believe anyone should be able to manage with enough practice and patience. Even with all of these exploits, tips, and this guide, this will be a very stressful and challenging achievement, so be prepared to use all of the practice and skill you've developed from your previous two or more playthroughs.

    Exploits

    Money Farming Exploit #1
    Speed: 1/10
    Luck Needed: 1/10
    Skill Required: 1/10


    This money farming exploit is very quick and easy to do, but it is insanely slow. The rate you will amass gold is agonizingly slow, but if you don't mind grinding for literally tens of hours to get plenty of gold, then this stress-free way to do it is always an option. How it works is that, when you pause during a game and quit to the main menu then continue your game, you start back at the first room of the castle, all rooms you've cleared and enemies you've defeated stay that way, with one big exception: all rooms marked with a pink question mark (such as miniboss rooms, rooms with Spiritual Shrines, rooms with jukeboxes, rooms with journal entires, etc.) will have the breakable objects in them respawn. You can take advantage of this by going to those rooms marked on your map and breaking all objects in them, collecting any gold that drops, and then pause, quit to the main menu, continue your game, warp to that area, and revisit them to break the objects again. You can repeat this forever, amassing as much gold as you'd like. However, as noted above, this can be insanely slow. Of course, the more pink question mark rooms you can revisit on each reload, the faster this will go.

    Money Farming Exploit #2
    Speed: 7/10
    Luck Needed: 9/10
    Skill Required: 4/10


    As you can see, this method is far faster than the first method. Unfortuantely, it requires a massive amount of luck. The goal here is to be lucky enough to have a dagger-throwing clown game spawn in your playthrough, This can spawn in any of the four areas, not just the castle. For this minigame, you have 10 daggers and need to hit 8 targets to win. Every target you hit gives you money immediately. So the exploit here is that you are going to throw all but one dagger and/or hit all by one target (i.e. ensure you do NOT complete the minigame), then pause and quit to the main menu. Continue your game, and now you can warp back near the minigame room and head back to it. You'll have all your money you gained from hitting targets, but can now start the minigame over from the beginning. You can repeat this forever to amass as much gold as you want.

    Note on Money Farming Exploits:
    The biggest question you'll have with using an exploit to gain money is "how much money is enough?" That will definitely depend on how confident and skilled you are with the game (the worse you are, the more money you should amass to boost your stats even more). As a point of reference, during my successful run I didn't use the second method at all and barely used the first, and I ended up spending somewhere in the range of 40,000-50,000 gold to get to around Level 50 for the final boss. It took me multiple tries to beat Herodotus and the final boss, and I consider myself above average with these types of games. So hopefully that helps you gauge how much gold to save up.

    Food/Mana Farming Exploit:
    Speed: 4/10
    Luck Needed: 2/10
    Skill Required: 1/10


    This isn't actually a separate exploit. The exact same exploit described above for Money Farming #1 can be used to farm health and mana infinitely too. Gold will drop the most frequently, then mana, and then food, but you can use that exact same method to refill your health to full before every boss fight. Once again, the more applicable rooms you have available, the faster you'll be able to find health items to refill.

    Blueprint Farming Exploit
    Speed: 10/10
    Luck Needed: 5/10
    Skill Required: 6/10


    I haven't really seen mention of this exploit anywhere, but there is an incredibly fast way to collect every blueprint available in your first playthrough in a matter of ten minutes or so, allowing you to purchase great gear very early in your playthrough. The caveat is that this exploit requires you to find and defeat any miniboss in the game. Sometimes you'll find two or three minibosses in one playthrough and sometimes you'll go five playthroughs without finding one, so there is decent luck with this one. But, once you do find one and beat it, this method is such a fast way to collect all of the blueprints. You have to be a little more careful with this one since it works a bit different from the money farming exploits above. Here are the steps:
     
    1. Locate the miniboss room and kill the miniboss so it drops a gold chest
    2. Open the gold chest
    3. DO NOT leave the room or quit to the main menu
    4. Press the Guide button on your controller and force close the game app
    5. Launch the game and continue your game. You'll be back in the first room of the castle but will have kept the contents of the chest
    6. Warp back near the miniboss room and head back inside
    7. The gold chest will be there, closed, allowing you to open it again for another reward
    8. Repeat the above steps over and over
    With gold chests, you should be getting blueprints most of the time, and sometimes permanent stat boosts. The amount of blueprints you can get will depend on which area of the game you do this in (i.e. the Castle has far less available blueprints than if you do this exploit in a miniboss room in the Dungeon, for example). I was lucky enough to find and beat a miniboss in the Tower (the Maya), and after ten minutes I had two and a half columns of gear for all five types of gear. Once you get all of the available blueprints, for me at least, the gold chest also stopped reward stat boosts and started giving money. Unfortunately, this exploit does NOT work to farm that money. Money only saves when you quit to the main menu, so once you start getting money from the chest a few times in a row, you've gotten all of the blueprints you're going to get and there's nothing left to farm.

    Cloud Save Exploit
    This is probably the most important exploit in the game, as it will theoretically allow anyone to get this achievement on a single playthrough regardless of your luck. You will, however, still need a ton of skill to beat all of the bosses, but this exploit gives you unlimited attempts and makes it 100% safe so you aren't taking any unnecessary risks. You may have heard or be aware that it's possible to back up your cloud save for Playstation users, who can take a more obvious and direct advantage of this, but it is still 100% possible to do so on Xbox too. Here is a step by step guide on how to back up your cloud save and reload it if you mess up:
     
    1. Reach a point in your playthrough where you're happy with your progress, gold, etc., and then pause and quit to the main menu.
    2. Press the Guide button and then force close the game app. This creates a cloud save backup of your progress (I always waited a minute or two after closing the app to allow the save to get loaded to the cloud).
    3. Launch the game app and continue your game. You will be back in the first room of the castle, but all enemies you've defeated are still dead, and all your progress is saved.
    4. Press the Guide button, scroll right all the way, and then choose Settings. Go to Network Settings, and then choose the option "Go offline."
    5. Close all those menus and go back into your game, where you're now playing offline.
    6. Make all your progress and attempt all your boss fights offline!
    If you fail, die, etc.:
     
    1. Close the game app
    2. Press button-menu.png on the game tile and choose Manage Games and Add-Ons
    3. Scroll down to Save Data for that game and choose it
    4. Choose Delete, and then choose the option Delete From Console to delete the local save
    5. Press the Guide button, scroll over to Settings, Network Settings, and choose to Go Online
    6. Launch the game app. It will sync with the cloud and restore your cloud save
    7. After continuing your game, go back offline and try again
    If you succeed, reach a new point you'd like to save your progress, etc.
     
    1. Pause and quit to the main menu, then continue your game. This puts you back in the first room of the castle and ensures with 100% certainly that you will not accidentally die while creating a new backup save
    2. While in your game, press the Guide button, scroll over to Settings, Network Settings, and choose Go Online
    3. Once it connects, go back to your game, pause, quit to the main menu, then press the Guide button and force close the game app. This will create an updated cloud save to work from
    4. Launch the game again and continue your game, then go offline again before progressing further
    I know it's a lot of steps, but after doing it a bunch it will become very fast and easy to do over and over to ensure you constantly have a backed up save on the cloud for if/when you prematurely die.


    General Tips and Advice:
     
    • Complete all other achievements betore attempting this. In particular, definitely defeat all of the remixed bosses. They will be very challenging, and will make the regular boss versions you fight in this playthrough feel so much easier.
    • While you can technically not kill enemies and instead just avoid them and progress to the next room, my recommendation is to slowly kill all enemies in every room before progressing to the next. This prevents you from an unpleasant surprise when you backtrack to go a different direction and accidentally get hit and potentially die.
    • Use the peek-and-run technique to scout every room before engaging in it. Enter the room and immediately leave, taking note of any obvious enemies you saw in the split second you spend in the room. While in the safety of the room you came from (presumably you've killed all enemies in it already), pull up your map and check out the room you just added to your map. If there are no chests and no other exits from that room, then definitely completely ignore it. If there are chests, it's up to you if you want to attempt killing enemies and/or reaching the chest(s) depending on how many enemies there are, and how much risk you'd need to take to reach the chests.
    • Dead enemies stay dead when you leave a room, but alive enemies reset. You can take advantage of this to slowly kill enemies in a row one at a time. Slowly enter a room and kill an enemy or two, and if you see more coming after you, quickly leave the room to reset them, then kill another one or two, etc. This is the safest way to clear rooms.
    • This should be pretty obvious after your first two playthroughs, but save the statues in each teleport room for when you really need the food (or mana).

    Playthrough Walkthrough
    With the knowledge of all of those exploits above, feel free to dive in and play using any combination of them if you're skilled and confident enough. What I've detailed below is the route and strategy I used to find and beat every boss in the game. I did it with six deaths, four or which were intentional. Also be aware that I won't be referencing any of the above tips in this section, as you should be using them constantly regardless of which exploits you're using.

    The other thing worth noting is that, of the exploits above, Gold Farming #2 (Clown dagger game) and Blueprint Farming are both entirely luck based. I therefore won't be mentioning either in the walkthrough here, because there's no telling when you'll happen upon the dagger game or a miniboss, nor do I think you should waste time continually starting new games until you find either. Instead, when you encounter the dagger game or a miniboss, I highly recommend taking advantage of both.

    Life #1 - Level 0
    Your goal in this first life is to explore most (preferably all) rooms of the Castle and locate the boss room, then kill Khidr, collecting as much gold as possible on the way. You will obviously be very weak, but you'll still be able to kill all regular enemies in two or three hits, at most, in all rooms of the Castle. This is the best time to put all of those tips into practice above. Take your time, because each hit can take a huge amount of health off. You can obviously abuse the Cloud Save Exploit to the extreme and create a new save after every room you clear, but that's excessive and I wouldn't recommend it. Instead, progress until you at least find a new warp room (either leading to a new area or the boss room). That's a good opportunity to make a new backup save. When you do find the boss room, if your health isn't at least 84 or so, use the Food Farming Exploit above to refill your health. This will allow you to take a couple hits in the boss fight without dying, making it far less stressful. Once you've farmed some health, definitely make a backup save there, before the boss fight. As mentioned in the tips, this (and all) boss fight should be done offline so you can reload your save if you die. 

    Khidr Fight: the biggest difference between this fight and when you beat him in previous playthroughs is that you won't have the ability to double jump. So you should have no problems avoiding the majority of his attacks (especially after beating Neo Khidr), with the only exception being his spiral attack. If it spirals away from you - no problem, just follow it around to the other side of him. If it spirals towards you, this will require you to jump over him to dodge the projectiles. Without double jump, the only way this is possible without getting hit is to do a downward strike on top of him. The timing make take a couple tries to get down, but it's not really difficult to master after a couple attempts. And if you have enough health, you can take a couple hits without dying, so it's not critical to avoid all damage.

    With Khidr dead, you should definitely have over 5,000 gold on you. Immediately make a new backup save. While it's technically possible to beat more bosses at Level 0, it's a hugely unnecessary struggle. Instead, after you beat Khidr, I recommend finishing exploring any rooms you haven't yet in the castle, collecting any money chests you didn't get. Consider going after a fairy chest or two. Lastly, feel free to progress into the Forest to track down more gold if you haven't died yet. I had around 10,000 gold when I took my first death, so that's a good point of reference but it's not absolutely critical. I would say 7,000 or more is solid. At this point you have no other classes to choose from, and class isn't really important, so no need to make a backup save before dying to choose your next class. Take a death whenever you're ready to upgrade for the Forest and second boss.

    Upgrades:
     
    • Start off by buying the Smithy, Health Up, Upgrade Knight, and Equip Up, then buy the Enchantress on the right. Now back out before buying any more upgrades.
    • Head to the Enchantress first and buy the available Vault Rune (Helm). This is critical to surviving the second, third, and fourth bosses.
    • Head to the Smithy next. Here is where a lot of variation will come into play. If you managed to farm blueprints during your first life already, then you'll obviously be spending a lot more money here to buy higher level gear, but your money will dictate how many you can buy, since you'll need to upgrade Equip Up to afford the heavier stuff. The second thing to mention here is that your playstyle could influence your equipment. For example, I never used mana/magic at all, so I never bought a cape or bracers. Instead, I bought the highest damage sword, the highest health helm, and the highest armor chestplate. Top priority needs to be chestplate, because it's your only source of increasing your armor, following my walkthrough.
    • Once you've bought your gear and that Vault Rune, head back into the manor and buy the Architect (won't be using this but needs to be bought to access more upgrades), Upgrade Barbarian, and Unlock Shinobi. Unless you farmed blueprints, you should have enough money to afford all those upgrades easily.
    • Now spend the rest of your money on Attack Up until you can't afford any more. Any remaining money should be spent on Health Up.
    As a reference point, for me, I didn't farm blueprints in my first life and only found one or two, and didn't buy any other runes, just the Vault Rune. I was at Level 18 for my second life, with a Helm, Sword, Chestplate, one Rune, and the rest spent on Attack Up. Again, not critical, just a reference point.

    Life #2 - Level 10-20
    As soon as you enter the castle for this life, remember to make a backup save and play offline again. The goal of this life is to find and beat the second boss. While you could explore a good deal on your way, I recommend finding the door to the second boss as soon as possible, to maximize the amount of health you have when you get there. Still kill enemies along the way, and even if you don't progress through rooms, it's still a good idea to pop into every possible room along your path just to have it added to your map. The castle will feel far easier now with how strong your attacks are, but you still want to be careful because you'll still take decent damage. Slowly work your way right through the castle, and carefully explore the Forest to find the boss door, then make a backup save.

    Alexander Fight: No real difference here whatsoever compared to the first fight against him, aside from you'll obviously take more damage from attacks. The important thing to note/realize here is that touching Alexander or getting hit by his energy balls does huge damage to you, whereas touching a Fury or getting hit by a white energy ball does significantly less. So if you're ever in a bind, it's far better to purposely run into a Fury or its projectile than to touch Alexander. Other than that, make use of your double jump and hack away at him until he's dead. You should have enough attack strength that it shouldn't take very long to finish him off.

    With Alexander defeated, immediately make another backup save. Now, I definitely recommend fully exploring the castle rooms and all Forest rooms. Kill the enemies and collect most or all of the regular chests. Grab any easy fairy chests too. I ended up with close to 15,000 gold on this life, as a point of reference. I got all the chests in the Castle and Forest regions, and even explored some rooms in the Maya just to get more gold. Again, not hugely critical, but I would say you should shoot for 10,000 gold at least. Once you're satisfied, make a new backup save before taking your next death.

    I recommend going offline for your death to ensure you get to pick a Shinobi class with good (at least, no bad) traits. Its high damage will make it very easy to kill enemies in the Maya and will make the boss a piece of cake. So I recommend reloading your cloud backup save until you get a good Shinobi class to choose from.

    Upgrades:
     
    • Before spending any gold in the manor, back out and go to the Smithy first. Any better Chestplate or Sword should be bought immediately. You can also visit the Enchantress if you want, for any runes you prefer. I personally never bought any runes beyond that original Vault Rune. I don't recommend wasting money on any other movement runes unless you have money to spare (see below).
    • Head into the manor and spend all of your money on Attack Up until you can't afford more, then spend the rest of your money on Health Up.
    • If you still have a few hundred gold left and can't afford another upgrade for those two, you should back out and buy an Enchantress Rune that'll help you. You could potentially spend that money on an upgrade for Mana Up or Magic Damage Up, but I never used them so didn't bother. 
    Again, as a point of reference, I was Level 30 for this life. I spent all of my money in the manor on Attack Up and Health Up.

    Life #3 - Level 25-30
    Once again, make a backup save as soon as you start, since you'll be exploring the Maya this time which can be quite perilous with all the enemies and fake treasure chests. Like before, your goal is to locate the boss door as soon as possible. Once you find it, make a new backup save to fight the boss offline.

    Ponce de Leon Fight: Literally no difference from your first fight with him. For me, I was a Shinobi with plenty of Attack Up, so this fight was over in a minute or two at most. Nothing new to add to the standard strategy here.

    With Ponce dead, just like with before, fully explore the rest of the Maya to get money, then do the same for the Castle, and then the Forest. Your goal here should be again 10,000 to 15,000 gold, which should be no problem with all the chests you have available at this point. Once you're done exploring and have plenty of gold, feel free to explore into the Dungeon somewhat too for more gold. As a side note, I was lucky enough to find a miniboss in the Maya at this point, and I farmed all of the blueprints from it here. Hugely luck dependent though, obviously.

    Once you're happy with your gold amount, make a new backup save before dying. This one is very important, so you can use it to get a good class for the fourth boss. Herodotus can be very unpredictable and a huge pain. This fight can be made worlds easier by getting a hero with the P.A.D trait, which makes floor spikes inactive from walking on them. I highly, highly recommend reloading your backup save to get a hero with PAD. I didn't, and it took me easily 20 tries (probably more) to beat Herodotus on the next life, and that was even after farming blueprints and having the best gear. It's worth it to get a PAD hero to save yourself the frustration.

    Upgrades:
    Just like before, head to the Smithy first and get any improved gear, then return to the manor and spend all your money on Attack Up. At this point, Health Up will be expensive enough that you won't be able to use your leftovers on it, so if you have leftover money, use it on any helpful runes for your playstyle. Vampire runes are great for the upcoming boss, if you have them available. An extra jump could be very useful too.

    As another point of reference, I was level 43 going into this life.

    Life #4+ - Level 35-45+
    Just life with previous lives, your goal here is to get to the boss door in the Dungeon, make a backup save outside it, and then fight and beat Herodotus offline. The Dungeon and Herodotus are, in my opinion, the hardest region and boss in the regular playthrough, so this will be the hardest part of this playthrough. The good news is that if you made it here on Life #4 like with this walkthrough, you have a ton of lives to spare for this achievement. So if you find yourself struggling immensely with enemies, surviving, and/or Herodotus, there is absolutely no reason to force yourself through that on Life #4. Instead, feel free to deviate by spend this life fully exploring the Castle, Forest, and Maya again to collect all of the gold. You should easily be able to collect another 10,000. You may also get lucky enough to find a miniboss room to farm blueprints if you haven't already. Once you've fully explored and gotten tons of gold and maybe more runes too, kill yourself, upgrade your stats more, buy new gear and/or runes, and attempt the Dungeon and Herodotus again. Because you have enough lives to spare, you could potentially do this a couple more limes to buff up your stats even more. I still recommend doing each life offline though, just so you don't waste one getting only a couple thousand gold and can't really upgrade your attack anymore.

    While you could've done this farming of gold and buffing up earlier too, I found it not as needed, and also far easier to do now with how strong you are. The Castle and Forest in particular should be a breeze since you should be able to kill all enemies in one hit. So feel free to spend a handful of lives exploring just to farm gold and improve your stats further. None of it is wasted, since it'll only help you against the final boss too.

    Herodotus Fight: Once you're ready to fight it, this fight can be a pain. The absolutely ideal state is that your attacks kill the Gravisors in a single hit, greatly simplifying things. Either way though, this fight has a ton of randomness to it that makes it challenging. If you managing to reload saves to get a PAD hero, it'll be far easier since you can just stand at the bottom and hit any blobs that come near you, safely under the center platform.

    Home Stretch
    With Herodotus dead, the door to the final boss opens. Now it's up to you how many more lives you want to spend grinding gold to buff your stats before the final fight. While you can theoretically wait until your 14th life to go against the final boss, it's risky, and it's not necessary to grind that much. I say it's risky because if you make a mistake with your backup save or miscalculate, you risk having to start all over. It's also not necessary to grind that much because you don't need to be that strong to beat the final boss. 

    As a reference point again, I was level 50 going into the final boss fight. I also was able to grind out blueprints, so I had the best Sword, Helm, and Chestplate available in the first playthrough. It took me probably ten or so attempts to beat him, and I did it on my sixth character. So my recommendation would be to use around ten heroes to be safe, so you have leeway before 15 but also get a bunch of gold for improving your stats. That should make it much easier for you than it was for me. 

    The most important thing to know for this final fight is that you do NOT need to be online when you beat the final boss to unlock this achievement! Treat this boss fight the same as the others: make each attempt offline, and if you die, try again either with your backup save or a new hero. Once you beat him, and the credits end and you're back at the main menu, close the game and delete your local save before going back online. This is to ensure that you have another chance in case you miscalculated and used too many heroes. If you were successful, when you go back online and launch the game to restore your cloud save, the achievement will unlock shortly after you launch the game. Once it does, you can be extremely proud of your completion, even with some exploits!
  • Kill a chicken.

    For this achievement, when you're selecting a new hero after you die, you will need to choose a hero with the trait Alektorophobia (same as the achievement name). This is complete RNG, so it might take you quite a few deaths to see this trait on one of your options.

    Once you've chosen a hero with this trait, what it does is it gives a decent chance for a chicken leg to instead spawn as a live uncooked chicken that runs around. If it runs into you it'll actually damage you, so be careful. Once one of these things spawns, simply hit it to turn it into a normal chicken leg to get health, and that'll unlock this achievement. 
 

Secret achievements

  • Use the special class at least once.

    The special class is the Half Dragon class, and it is unlocked on the very top right corner of the Manor. To reach it, you'll need to buy all the upgrades available (at least one point in all of the tiered ones) on the right side of the Manor. The skills will go all the way to the top of the screen, and to see this one you'll need to scroll up off-screen. This one was pretty expensive - around 5300 gold - for me, so you'll need to explore a bunch and save up to afford it.

    Once you unlock it, you'll need to die and hope that one of your hero options is a Dragon class. Choose it when one becomes available, and this achievement will unlock immediately.
  • Defeat the boss in Castle Hamson.

    Story-related; cannot be missed.

    The door to this boss, like all boss doors, will be in a random room (in the Castle section, for this boss). It's a large open double door with a warp pad below it and two statues on either side of it.

    The boss in Castle Hamson in Khidr, a giant eyeball. This is quite an easy fight (compared to all other bosses) because Khidr just sits in the center of the screen, doesn't move, and there are no other enemies to deal with. It has three attacks, all involving its red projectiles:
     
    • It shoots them out in all directions at once, with a gap between each big enough to fit through
    • It shoots pairs in random direction
    • It shoots them out in a spiral pattern
    The safest way to fight this boss is to stand on the ground platform, to one side of Khidr (not directly under it), and continually jump and hit it. When it does an attack, you can simply walk back and forth on the ground to dodge the projectiles. The only exception to this strategy is when it does its spiral projectile attack. This will require you to follow the gap in the spiral until it stops. If the projectiles spiral away from you, this should be no problem to just walk to the other side and jump up a platform, which is when the projectiles will stop. If the projectiles spiral towards you, this will require you to jump straight up the platforms and jump over Khidr to avoid damage. If you have a Vault Rune equipped, allowing you to double jump, jumping over Khidr should be no problem. If you don't have a Vault Rune equipped, the only way to get over Khidr without taking damage is to do a downward sword strike right on top of it to bounce over it to the other side, where the spiral will stop.

    That's really all there is to this fight. The biggest advice I can give is to be patient rather than trying to be too aggressive. Take your time, ensuring you dodge the projectiles, and only strike when it's safe, and you should be able to take down this boss relatively easily.
  • Defeat the boss in the Forest Abkhazia.

    Story-related; cannot be missed.

    The door to this boss, like all boss doors, will be in a random room (in the Castle section, for this boss). It's a large open double door with a warp pad below it and two statues on either side of it.

    The boss in the Forest is Alexander, a giant floating flaming skull. This boss is definitely going to feel significantly harder than the first boss, because it is in every way; it moves, it fires projectiles, and it spawns regular enemies that also chase you and fire projectiles. The actual attacks are relatively simple:
     
    • Alexander will slowly follow you around to try to run into you
    • Alexander will stop and then shoot a string of quite large projectiles in the four cardinal directions. He will not move while shooting
    • Alexander will summon small white versions of him. These have the exact same attack patterns, only much smaller and they only shoot a single project in each direction instead of a long string
    The two hardest things about this fight are that a ton of enemies (and therefore projectiles) can build up on screen, and that there can be a lot going on off-screen that you won't see while traveling around the room until it's too late.

    The general strategy I recommend is to do very slow circles around the outside of the arena. Stay near Alexander so you can keep hitting him over and over while he's moving. When he stops to shoot, that's a great time to get in many hits as long as you can do so safely. Just don't get greedy so you have time to get away before he starts moving towards you again. As for circling the room, moving horizontally isn't really a problem since you can simply jump if you run towards a projectile. It's the vertical traveling that can be very risky, such as dropping down or jumping up right into a Fury or its projectile. Particularly later in the fight, there will be a ton of Furies. While it's tempting to try to kill off all the Furies to make it safe, don't bother. Alexander just continually spawns them up to a maximum amount, so it's virtually impossible to have none on screen for any significant amount of time. Instead, just kill ones that are in your way as you move in circles.

    The three things that will make this fight significantly easier are:
     
    • A Shinobi class, or at least very high Attack. If you can kill the Furies in a single hit, this fight will be far, far easier.
    • A Vampire rune in any slot. This will give you health back every time you kill a Fury. You'll be killing many, so this will drastically help with survivability.
    • A Vault rune in any slot. This will significantly help with the peril associated with the vertical travel that I mentioned above. Being able to quickly change direction (vertically too, not just horizontally) can make it so much easier to avoid projectiles
    Even with all that, there is no avoiding the fact that this boss with take some practice to get used to how to kite enemies around and deal with them, and some luck of just not accidentally running into an enemy or projectile.
  • Defeat the boss in the Maya.

    Story-related; cannot be missed.

    The door to this boss, like all boss doors, will be in a random room (in the Castle section, for this boss). It's a large open double door with a warp pad below it and two statues on either side of it.

    The boss in the Maya is Ponce de Leon, a large fireball. In my opinion, this boss is slightly easier than the previous one, just because there's less going on and not much randomness to worry about. He barely even has any attacks:
     
    • Ponce will slowly follow you around the arena, dropping fireballs continually as he moves
    • He will stop for a couple seconds, then dash at you, then pause again for a couple seconds before either dashing again or just moving at normal speed
    That's it for his attacks. To make things a bit more difficult, there are spike balls that are bouncing around the arena in set directions. The fireballs Ponce drops stay on the screen for a decent amount of time before disappearing, so if you aren't careful you could quickly see the screen fill up with obstacles and trap you. 

    The general strategy here is pretty much the same as the previous boss: make slow circles around the outside of the arena. As long as you take the circles slow, the fireballs he drops should be disappearing by the time you reach them again. The entire time you're running from him, you should be turning and getting a quick hit in on him continually. Just be very careful not to touch him, as he does a lot of damage. When he pauses to dash, get away from him. When he pauses after his dash, you can get two or three hits in quickly before he moves again. It'll take some practice, but you'll learn the distance of his dashes so you'll know how far away to get before you stop, let him dash right next to you, and just stand there swinging as soon as he stops next to you. 

    It's really important that you don't get greedy with your hits and you always stay on the run and defensive. This fight is entirely about being able to stay ahead of Ponce and avoid obstacles. Only hit him when it's safe to do so. The easiest way to die is to try for hits too often or too many, and then he hits you and does huge damage. 

    Some things that will make this fight much easier:
     
    • If you equip at least one Retribution rune, taking damage from a spike ball will destroy that spike ball, ensuring you never need to worry about it again. Getting hit by a fireball will also destroy it, but he'll just spawn more so it's not that helpful
    • If you play as an upgraded Barbarian, you can use your Shout with button-y.png and it'll clear all fireballs from the screen. This can be very handy if you circle around and the fireballs haven't disappeared yet
    • A Vault rune is absolutely critical in this fight to ensure you can consistently avoid the fireballs and the spike balls
    • A Dragon class makes it really easy to avoid all obstacles since you're flying
    • If you're a magic user or a Dragon class, the Ambivelous trait makes it so that your spell shoots behind you. This is actually a good thing for this fight, as it allows you to shoot your spell at the boss without the need to turn to face him. You can keep running away while shooting backwards
    You'll likely still need some practice to get used to the timing and distance of his dashes, but this fight is one of the simpler ones. 
  • Defeat the boss in the Land of Darkness.

    Story-related; cannot be missed.

    The door to this boss, like all boss doors, will be in a random room (in the Castle section, for this boss). It's a large open double door with a warp pad below it and two statues on either side of it.

    The boss in the Land of Darkness is Herodotus, who is a giant version of the blob enemies you've assuredly seen and fought by now.  There's actually not much to this fight at all, but the sheer number of enemies can make things very chaotic and unpredictable, making it a pretty difficult fight.

    Just like the blob enemies, Herodotus doesn't have any real attacks. It just moves around and occassionally jumps in your direction. Killing a blob spawns more blobs, and there are a total of 32 blobs you'll need to destroy in this fight. The catch here is that every time a blob splits from being destroyed, a Gravisor is spawned (the enemies that summon rock spikes from the ground). On top of that, you have a floor full of spike traps aside from two spots.

    The general strategy, and safetest one, is to take this fight as slow as possible. Destroy a single blob, then immediately destroy the Gravisor is spawns before destroying more blobs. Take one blob down lower and lower to eliminate it completely, continually stopping to destroy the Gravisor immediately. This is the ideal strategy, but sometimes it can be tough to execute when you have many blobs on screen and it becomes easier to just destroy more while they're grouped up right in front of you.

    Most strategies I've seen recommend destroying a blob on the ground and then immediately jumping up to the top platforms to defeat any Gravisors, I found this extremely difficult to do reliably, primarily because coming back down from the upper platforms is so risky when there are many blobs, I would always get caught off guard by one jumping toward me as I was trying to come back down. So instead, I tended to stay as low to the ground as possible, and just waited for Gravisors to come to me, moving back and forth between the two safe spots on the lowest level. Ideally, you want the blobs to jump toward you and end up on the middle platform just off the ground. From here, you can jump up and hit them with your sword undernearth them, without fear of one running into you. I would take this opportunity to destroy many blobs. When Gravisors start using their spikes, just move enough to be able to keep hitting the blobs.

    The other thing you can take advantage of in this fight is that the blobs only move and jump towards you when they're close eough to "see" you. So if you get some blobs all the way over to the left side of the screen, for example, and you beeline all the way to the right, you can fight any blobs there and their Gravisors while the ones on the left stay over there and don't make things more chaotic. Then, when you've killed all enemies on one side, slowly inch toward the other side to bait any remaining enemies toward you, preferably one at a time, so you can fight each separately. This can make the fight far more manageable.

    Some things that will make this fight easier:
     
    • A hero with the P.A.D trait can walk on the floor spikes without activating them. This makes things so much easier, allowing you to stay on the ground floor to fight the entire time, preventing any blobs from jumping up underneath you
    • Vampirism runes will be extremely helpful in this fight, because every blob and Gravisor you destroy will give you health
    • A strong Shinobi class or at least plenty of Attack is ideal, because if you can destroy Gravisors in a single hit this fight becomes far easier
    • If you're a magic user, Flame Barrier plus Siphon runes will be great here, constantly getting mana back for your kills and just being able to stay near enemies to kill them
    No matter what, you're going to need some luck in this fight. You're almost guaranteed to get caught off guard or from something off screen multiple times during this fight, but eventually you'll have a good fight where things go smoothly (or you'll just be strong enough to tank all the hits you take).
  • Defeat the last boss.

    Warning: Once you defeat the final boss, you lose access to that playthrough and are forced to start New Game+ immediately. Complete anything you want to do on your first playthrough (where enemies are easier) before moving on.

    Story-related; cannot be missed.

    The final boss is accessed from the main door in the first room of the castle, which will open after returning to it once you've beaten the other four bosses. This door stays open upon death, allowing you to quickly return after each death to attempt again.

    This boss has two forms, and surprisingly, this achievement unlocks after beating the first form, not the second.

    Johannes (first form)
    Johannes is a knight like you, and therefore has many attacks you've used:
     
    • He will occassionally swipe at you with his sword. He has a longer reach than you so be careful
    • He will dash backwards and drop a blade wall. He typically does this is you approach him repeatedly
    • He will throw daggers at you. He does this often when there's some distance between you
    • He will jump and throw axes into the air in random directions
    In general, one at a time, his attacks are easy to avoid. The problem is that he's fast and quite aggressive, and he has a longer reach than you with his sword. 

    The best strategy for this fight is to not be aggressive, and let him come to you every time. If you try to be aggressive, he'll always win with his blade wall and longer reach (plus he can simply run into you to hurt you too). Instead, just stand still or move away slightly, let him come to you, and wait for him to attack. It's always safe to attack him right after he attacks. He will often approach and throw daggers as he gets close. Jump over them and quickly hit him. If he jumps and throws axes, you can easily get in two hits on him while he's on the way down from his jump. If he does a blade wall, ignore him and let him come to you. If he hasn't done an attack for a few seconds, he's likely to swipe at you with his sword if you get close, so be careful. So in general, stay defensive and wait for him to attack, then as soon as he does, go aggressive and get a hit in, then retreat again and wait for his next attack. This makes it relatively easy to beat him. 

    Some things that make this fight easier:
     
    • A hero with Gigantism makes this fight extremely easy. You have more reach than him, so you can stay aggressive and hit him over and over without him being able to reach you with his sword
    • A hero with the trait that improves knockback is very useful here. Every time you hit him you'll put enough space between you two to avoid his aggression, making the fight go at your pace instead of his
    Once you beat him, he'll drop a bunch of food and mana. Only grab what you need and leave the rest for when you need it later. 

    The Fountain (second form) 
    The Fountain is a hulking knight that doesn't get knocked back from your attacks at all, even if you have the trait that knocks foes back farther. He only has a few attacks:
     
    • He'll raise his sword and swipe it at you. This is extremely telegraphed
    • He'll phase out and zoom to one side of the arena, then spawn a bunch of horizontal swords that'll shoot at you in a random order. Easiest to dodge by running away from them while jumping appropriately
    • He'll slam his sword into the ground and spawn a ton of vertical swords in the ground that'll then shoot up randomly. Just find a gap in the swords and stand there
    • He'll phase out and zoom to the middle of the arena, then he'll spawn swords sticking out of the ground across the entire arena. The only way to avoid this attack is to activate one of the platforms and stand on it, or bounce on his head
    All in all, once you know his attacks, he telegraphs them all and makes them extremely obvious. This fight is actually the exact opposite of the first form: stay aggressive and constantly be hitting him while he's walking around. If he winds up for a melee hit, simply move out of the way. The vertical swords are very easy to avoid, but the horizontal ones rely on a bit of luck with the order they shoot, hopefully giving you enough of a gap to jump through. When he goes to the center to fill the arena with swords, jump up and downward strike on his head. You can easily get four free hits in by just bouncing on his head during this attack. This fight is much easier than the first form because he has no sudden attacks or movements that can hurt you, so just stay on him wailing away until you beat him.
  • Beat the game… twice.

    To clarify what this achievement requires: you must complete New Game+, not just simply beat the game a second time on a new save file. After completing your first playthrough, you will immediately be prompted to start NG+ and will no longer have access to your first playthrough.

    The only difference with NG+ is that all of the enemies are the more difficult versions of what was there before. So, in the Castle, for example, instead of it being filled with the base types of enemies, it's the types of enemies you would've seen in the Forest or Maya, and it just goes up from there. There is no difference with any of the boss fights, other than they're a higher level so they do more damage.

    The difficulty of NG+ will depend entirely on what level you were at the end of your first playthrough. I was around level 100, if the first playthrough was a 7/10 in difficulty for me, NG+ started at a 5/10 and quickly got easier. Enemies and chests give you way more money in NG+, so you'll find yourself able to upgrade more than at the end of your first playthrough. If you haven't done it yet, I highly recommend taking advantage of the exploit detailed in Disposophobia (90G). This will allow you to get all of the blueprints available in NG+ in a matter of minutes once you find and beat your first miniboss. This will give you some of the best gear in the game available for purchase, and will give you a huge leg up.

    Aside from that, all of the strategies you used for the first playthrough apply the same here, so use all of your experience to plow through NG+.
  • Defeat the brothers.

    *MISSABLE*

    The reason I have flagged this achievement as missable is because there is no free roam or any way to access your playthrough again after you beat the final boss. Once you defeat the final boss, you'll be forced to start New Game+ immediately, and you will have to meet the requirements below all over again to get this achievement.

    Before you can attempt this achievement, you'll first need to complete the requirements for Ostiophobia (40G), Scotomaphobia (40G), Astrophobia (40G), and Chemophobia (40G) all in the same playthrough. Refer to each one for unlocking it by beating a remixed boss. Each remixed boss gives you a piece of a medallion when beaten. 

    Once you've beaten all four remixed bosses, there is now a chance for a Spiritual Shrine to grant you the Traitor's Obol item. This is completely random, like all Shrine rewards, so you'll just need to keep doing new runs of the castle until you get the Traitor's Obol from a Shrine. Once you do, die and then talk to Charon to give him the Obol. Now, all four of the boss doors will open again, and you can enter any one of them to fight the remixed final boss, Brohannes (DO NOT enter the normal door to the final boss in the first room of the castle). Like all remixed boss fights, this one starts you with a set character - you're essentially playing as Johannes the Traitor, the final boss of the game. He functions almost exactly like you, with the ability to throw daggers, axes, or put up a blade wall. 

    Brohannes are really just two Johannes bosses that you have to fight at the same time. They are both identical, and have the same attacks: melee, daggers, axes, and blade wall. Since they have the same move set as Johannes, the best way to fight them is to use the exact same strategy as the Johannes fight, outlined in Paterphobia (90G), with the added advice of trying to keep both of them on the same side of you so that you aren't dealing with attacks from both sides at once. Stick to the same defensive counter attack strategy as described for Johannes, only hitting one when its safe to do so. This fight can get very hectic very quickly if they surround you and are really aggressive with projectiles, but you can take seven hits so just stay calm and get back in control by getting them both on one side again. Once you defeat one of them, it should be very easy to finish off the second one. Just stay as careful as possible and don't take any risks. 

    There are two other exploit-ish strategies that you can try to take advantage of in this fight:
     
    • If you can separate the brothers with enough distance, it's possible to fight one at a time. This can sometimes be accomplished right from the start of the fight by dashing towards one of them, and the other will dash back and be too far away to see you to come attack you. It's also possible to get lucky and do this in the middle of the fight, but much harder. If you can isolate one, you should have a much easier time taking him down solo, then you can go fight the other one. 
    • It is possible to air juggle one of the bosses against a wall by timing your attacks properly. The video below shows this in action. However, be aware this is far easier said than done, especially consistently and without the boss breaking free and getting a hit on you. I personally wasn't able to succeed by using this the entire fight, but if you're struggling with using standard tactics, by all means try this method. Also note that he gets extremely lucky in this video, both with the fact that the second boss doesn't come to attack him in the beginning (thanks to the above exploit) and with how long the first boss takes a beating against the wall before breaking free.
  • Defeat the trademarked chemical.

    *MISSABLE*

    The reason I have flagged this achievement as missable is because there is no free roam or any way to access your playthrough again after you beat the final boss. Once you defeat the final boss, you'll be forced to start New Game+ immediately, and you will have to meet the requirements below all over again to get this achievement.

    This achievement is for beating the remixed version of Ponce de Leon. To access the remixed version of this boss, first you need to beat the standard version. Once done, you now need to find a Shrine Statue anywhere (on the current run or any subsequent run) and hope that the item you get from the Shrine is Ponce's Obol. This is complete RNG, both with finding a Shrine and getting the Obol, but my experience was that the game was pretty good about granting you the Obol when you were after it. Just ensure that once you get the Obol, you don't accidentally replace it with a different item from a different Shrine. Once you die and are back outside, talk to Charon to give him the Obol. This will open the boss door for Ponce in the Maya permanently (meaning on all subsequent runs, so you don't have to worry about beating it on this next run). Now, when you return to the boss door in the Maya and enter it, you'll be able to fight the remixed version, Ponce de Freon. Like all remixed boss fights, you play as a set character (so you don't need to wait until you level up more, and you can't build up your character to be stronger against the boss) and if you die, you're put right back outside the boss door with no penalty (you don't lose any money or progress, and can attempt again right away as many times as you want). 

    The remixed boss fight is nearly the same as the original, with two minor changes:
     
    • There are no spike balls to avoid, but much less platforms to use
    • The fireballs be drops last far, far longer than the ones from the original boss. 
    ​​​​​​The general strategy for this fight is therefore largely the same as the original: lure the boss around the arena in a circular pattern to spread out his fireballs as much as possible, continually hitting him as you go, watching out for his dashes. The one additional thing you have at your disposal in this fight is you're a Barbarian, so you can press button-y.png to do a Shout, which will clear all visible fireballs off the screen. You have enough mana to do this three times, so make good use of them. 

    That's really all three is to this fight. You'll have to do more fireball weaving and dodging, but there isn't anything else to deal with or avoid. Once you defeat him and open the chest, you'll get a medallion piece and this achievement. 
  • Defeat the son.

    *MISSABLE*

    The reason I have flagged this achievement as missable is because there is no free roam or any way to access your playthrough again after you beat the final boss. Once you defeat the final boss, you'll be forced to start New Game+ immediately, and you will have to meet the requirements below all over again to get this achievement.

    This achievement is for beating the remixed version of Alexander. To access the remixed version of this boss, first you need to beat the standard version. Once done, you now need to find a Shrine Statue anywhere (on the current run or any subsequent run) and hope that the item you get from the Shrine is Alexander's Obol. This is complete RNG, both with finding a Shrine and getting the Obol, but my experience was that the game was pretty good about granting you the Obol when you were after it. Just ensure that once you get the Obol, you don't accidentally replace it with a different item from a different Shrine. Once you die and are back outside, talk to Charon to give him the Obol. This will open the boss door for Alexander in the Forest permanently (meaning on all subsequent runs, so you don't have to worry about beating it on this next run). Now, when you return to the boss door in the Forest and enter it, you'll be able to fight the remixed version, Alexander IV. Like all remixed boss fights, you play as a set character (so you don't need to wait until you level up more, and you can't build up your character to be stronger against the boss) and if you die, you're put right back outside the boss door with no penalty (you don't lose any money or progress, and can attempt again right away as many times as you want). 

    Alexander IV is significantly harder than the original version, and in my opinion, this is the hardest boss in the game. All of the attacks are actually the exact same in this fight: Alexander still follows you and stops to shoot, and he still spawns Furies that also follow you and stop to shoot. The big difference is that the entire arena is surrounded with spikes, so there is no ground to walk on at all, just platforms to jump between, and on top of that, there is a giant spike wall in the middle separating the two sides. The only way through it is with button-y.png to dash through it, but you have to be close to the spikes before using it so you actually go through them. As a result, this fight is far more difficult to dodge projectiles and Furies. 

    Thankfully, there is a relatively simple exploit that makes this fight far more manageable. How it works is, for both Alexander and his Furies, if they're far enough away from you, they'll just stay in place because they can't "see" you to come attack you. We can exploit this to separate Alexander from his Furies so you can fight by alone without any Furies bothering you. The other thing we're going to take advantage of is that he can only spawn a set amount of Furies, then he stops. So we're going to isolate him on one side of the screen so he can't see us, then lure all Furies to us to kill them (so the new ones spawn far away with him), then, once they're all dead, lure just him over while all his Furies stay on the other side of the screen. This allows us to just dodge him and his single attack while we focus all our attacks on him.

    I will explain how exactly I was able to do this relatively easily and consistently, and then I will link a video showing it in action (but in my opinion, the video doesn't make it seem very simple and repeatable for actually isolating him). As soon as the fight starts, jump up to the top platform, walk all the way to its left side, and press button-b.png to place a shadow there to teleport to. Now hop down and go right, around Alexander, through the spike wall, all the way to the right side of any of the platforms (doesn't matter if you stay high or low). Kill off any Furies bothering while you wait for Alexander to come over. Once he gets to you, jump off the right side of the platforms into the spikes (don't worry, they don't do much damage to you). This should bring Alexander even farther right. Now stay on the spikes, and as soon as you see Alexander stop moving to do his projectile attack, immediately press button-b.png to teleport to your shadow on the top left side. As long as Alexander was on the right side of the right platforms, you should be good on the left for him to no longer come after you. You've successfully isolated him. 

    Now the second phase. First, kill an Furies that may be after you on the left side. Now slowly work your way right on the platform, taking a few steps then retreating. This is to bait any alive Furies that are between you and Alexander to come attack you so you can kill them (so he spawns more farther off to the right). It is absolutely critical that you kill all the Furies before luring Alexander back over. So take it a little slow, and retreat each time a Fury comes so you don't accidentally go too far right. Once they're all dead (I've had to jump all the way to the spike wall and back to bait the last ones, at times), it's now time to bring Alexander over to you. Do the same thing you did with the Furies (I actually had to dash with button-y.png through the spike wall to get him to see me, before going back through to the left side) by going just far enough right to get his attention so he comes after you. As long as you killed all the Furies between you and him, he'll come to you and all the newly spawned Furies will be off the right side too far to see you.

    With that done, it's now just you and him. Do an oval pattern to kite him in a circular fashion around the left side while hitting him, and avoiding his obvious projectile attack. It should be relatively easy to fight him like this and finish him all. Once he's dead and you open the chest, you'll get a medallion piece and this achievement. 

    Here is a video of this isolation exploit in action. Full credit to the creator of the video. 
  • Defeat the doppleganger.

    *MISSABLE*

    The reason I have flagged this achievement as missable is because there is no free roam or any way to access your playthrough again after you beat the final boss. Once you defeat the final boss, you'll be forced to start New Game+ immediately, and you will have to meet the requirements below all over again to get this achievement.

    This achievement is for beating the remixed version of Khidr. To access the remixed version of this boss, first you need to beat the standard version. Once done, you now need to find a Shrine Statue anywhere (on the current run or any subsequent run) and hope that the item you get from the Shrine is Khidr's Obol. This is complete RNG, both with finding a Shrine and getting the Obol, but my experience was that the game was pretty good about granting you the Obol when you were after it. Just ensure that once you get the Obol, you don't accidentally replace it with a different item from a different Shrine. Once you die and are back outside, talk to Charon to give him the Obol. This will open the boss door for Khidr in the Castle permanently (meaning on all subsequent runs, so you don't have to worry about beating it on this next run). Now, when you return to the boss door in the Castle and enter it, you'll be able to fight the remixed version, Neo Khidr. Like all remixed boss fights, you play as a set character (so you don't need to wait until you level up more, and you can't build up your character to be stronger against the boss) and if you die, you're put right back outside the boss door with no penalty (you don't lose any money or progress, and can attempt again right away as many times as you want). 

    Neo Khidir actually has the exact same attacks as Khidr. There are only two differences with this fight:
     
    • There are spikes in the middle of the floor now
    • Neo Khidr doesn't pause between attacks at all, like Khidr did, and his attacks are way faster (projectiles shoot faster) 
    • The real challenge with this fight is how nonstop his attacks are, giving you no time to safely counter attack. Instead, you're forced to attack and dodge at the same time, constantly moving and trying to get his in. 
    For this fight, it is absolutely critical to realize that the way to do the most damage to Neo Khidr is by pressing button-y.png to drop a blade wall on him. This does damage over time, but does significantly more damage than your regular melee attack. With the preset character you're playing as, regular attacks restore mana. The strategy for this fight therefore becomes: use button-y.png to drop a blade wall, then do at least two or three regular attacks to regain mana, then immediately another blade wall. You need to be using blade wall as soon as you have enough mana. The purpose of your sword attack is just to restore mana for blade wall, since hits barely damage him. Keep dropping blade walls as soon as you can and never forgot to do so. 

    Since his attacks are the same, the way you avoided them originally is the same. Really the only challenging one is the spiral shots, since they go very fast now. No matter what, it's going to take some practice to get the timing down, because you're going to need to dash and jump very quickly and precisely to stay between the projectiles. You'll undoubtedly die a lot until you get the timing down for dodging the spiral projectiles. Once you can do that, just keep spamming blade wall and you'll be able to take him down. Once you defeat him and open the chest, you'll get a medallion piece and this achievement. 
  • Defeat the asteroids.

    *MISSABLE*

    The reason I have flagged this achievement as missable is because there is no free roam or any way to access your playthrough again after you beat the final boss. Once you defeat the final boss, you'll be forced to start New Game+ immediately, and you will have to meet the requirements below all over again to get this achievement.

    This achievement is for beating the remixed version of Herodotus. To access the remixed version of this boss, first you need to beat the standard version. Once done, you now need to find a Shrine Statue anywhere (on the current run or any subsequent run) and hope that the item you get from the Shrine is Herodotus's Obol. This is complete RNG, both with finding a Shrine and getting the Obol, but my experience was that the game was pretty good about granting you the Obol when you were after it. Just ensure that once you get the Obol, you don't accidentally replace it with a different item from a different Shrine. Once you die and are back outside, talk to Charon to give him the Obol. This will open the boss door for Herodotus in the Dungeon permanently (meaning on all subsequent runs, so you don't have to worry about beating it on this next run). Now, when you return to the boss door in the Dungeon and enter it, you'll be able to fight the remixed version, Astrodotus and Herodotus. Like all remixed boss fights, you play as a set character (so you don't need to wait until you level up more, and you can't build up your character to be stronger against the boss) and if you die, you're put right back outside the boss door with no penalty (you don't lose any money or progress, and can attempt again right away as many times as you want). 

    This boss fight is the most unique one in the game, and probably the easiest. You play as a Dragon class, so you can fly, and the two bosses are flying around too, so the entire thing plays like the old arcade game Asteroids. You have two bosses to beat, and just like with the original fight, each time you destroy a blob it splits in two. All the little blobs will be flying around too then. Also, just like the game Asteroids, the screen wraps around from top to bottom and also side to side, giving you more room to dodge enemies. There aren't any Gravisors in this fight, so it's entirely about shooting enemies while dodging them. It'll likely take a couple tries, but that's it, and you shouldn't have many problems as long as you keep moving and take out enemies quickly. Once the boss is dead and you open the chest, you'll get a medallion piece and unlock this achievement. 
  • Mock the traitor.

    *MISSABLE*

    The reason I have flagged this achievement as missable is because there is no free roam or any way to access your playthrough again after you beat the final boss. Once you defeat the final boss, you'll be forced to start New Game+ immediately, and you will have to meet the requirements below all over again to get this achievement.

    This achievement requires you to enter the final boss fight (you don't need to actually beat him) while using the Traitor class. Unlocking the Traitor class is one of the toughest challenges in the game.

    First, you'll need to beat each of the four main remixed bosses. Refer to Chemophobia (40G), Ostiophobia (40G), Scotomaphobia (40G), and Astrophobia (40G) for how to access and beat each of those four bosses. Once they're all dead, you'll be able to fight the remixed version of the final boss. Refer to Syngenesophobia (100G) for how to access and beat that boss. 

    Once you beat the remixed final boss, you'll unlock the new Traitor class. Now you'll need to intentionally kill yourself to choose a new hero until one of your choices is a Traitor class. This could take multiple deaths for a Traitor to finally show up, especially if you've unlocked every type of class. Once you choose a Traitor, simply enter the door to the final boss and this achievement will unlock immediately, while some unique dialogue with the final boss plays out.