- Estimated achievement difficulty: 5/10 [Achievement Difficulty Rating]
- Offline: 22 
- Online: 0
- Approximate amount of time to 1000: 15-20 hours [Estimated Time to 100%]
- Minimum number of playthroughs needed: 1
- Missable achievements: None [level select]
- Does difficulty affect achievements: No difficulty option
- Unobtainable/glitched achievements: None
Welcome to Molecats, a Lemmings-like puzzle game where you don't have control over your character(s), instead controlling the environment to allow them to move where you want them to go. In this game, that takes the form of tiles that you can rotate (and later flip and slide) to provide varying paths for the molecats to follow. There are around 60 levels in the game and, assuming you're after the completion, you're going to need to collect everything in every level. This will get you three stars on every level, unlock all collection, and collect all golden tiles. Thankfully, collecting everything is all that is needed for three stars; time has no impact whatsoever. Some levels will take minutes to finish but some of the tougher ones could take upwards of an hour. Your mileage may vary quite a bit, but overall expect to spend a decent amount of time on this game. Let's get started.
As noted above, there are around 60 levels in the game, including bonus levels. For this completion, you need to collect everything in every single level. When you start a level (and any time during it), you can pause and see how much of each type of item is in the level. Here is a quick rundown:
- Mushroom symbol - These are a collection of obvious mushrooms placed on various surfaces throughout the level, which you simply need to touch to collect.
- Molecat symbol - These are the number of extra molecats you need to find, touch to wake up, and guide to the exit of each level. Note that this number does not include your starting orange molecat, only the extra ones to find in the level (so the total number of molecats reaching the exit should be this number plus one).
- Orange diamond/box - Many levels have a simple light brown package placed somewhere. One of your molecats needs to touch it to pick it up, and then bring it to the exit door. These are one of the two main collectibles in the game, and they're the ones that add to your collections (in the 'Trophies' menu from the main menu).
- Orange question mark - This denotes how many hidden tiles are in that level. These hidden tiles will be black until you enter them, at which point they light up permanently. More information and tips in Molecats Forever! (150G).
- Golden tiles - These aren't tracked anywhere ingame aside from your total count in the upper right corner of the level select map, so it's impossible to see which levels have one and if you collected it in that level. Grammy! (130G) has a list of which levels have golden tiles, and you'll need to keep track of which ones you've collected. These work just like the boxes: grab it with a molecat and bring it to the exit.
If you ensure you get three stars on every level and the golden tile on each that has one, you'll unlock nearly every achievement by the time you complete the game. There are a few miscellaneous achievements though:
- Go March - Replay this level after completing 'Reverse!' to unlock the ability to reverse, so you can Arm Yourself! (20G)
- Run! - Replay this level after completing it and unlocking the ability to run so you can unlock Flash! (20G)
- Reverse! - Make sure to grab Long Walk (10G) during this level
- Stop! - Replay this level after your three-star run to unlock Sneak Master (20G)
- Safeman! - Refer to Locksmith! (50G) to ensure you get that achievement during your play of the level so you don't have to replay it
- Lift? - Make absolutely sure to unlock Up’n’Down (50G) at the end of this level so you don't have to replay the entire thing
- If you haven't unlocked Strategy (10G) by the time you finish everything else, load up any short level to get it
- Those are all of the miscellaneous achievements. They're all very short and easy to get, so just refer to each solution for how. The most important one is Up’n’Down (50G) since it's at the very end of a pretty long level
Molecats is a pretty involved and decently challenging puzzle game. Although, a lot of the levels involve some amount of trial and error to see what works, but then you can begin to strategize and levels become easier. The hardest levels are ones where tiles are dark and require light to see, since it's far harder to discern a setup and path to complete the level. But again, with enough trial and error, you should be able to manage through each level. Just don't leave until you've found everything, and with enough time, you'll conquer all of the levels and get this well-earned completion.