-Estimated achievement difficulty: 2/10
-Offline: 7 
-Online: 5 
-Approximate amount of time to 200: 2-6 Hours
-Minimum number of playthroughs needed: 1
-Number of missable achievements: 3 ("Uncontrollable," "Skill Hunter," and "The King of Fighters").
-Glitched achievements: None
-Do cheat codes disable achievements?: No cheats
-Does difficulty affect achievements?: No
Step 1 - Arcade Mode:
Before actually heading into arcade mode we need to do two things to make all arcade mode achievements as easy as possible. First, on the main menu go to help & options. Then settings, and now battle settings. Change the following settings:
- CPU-Level to 1
- Defense Level 1p to 8
- Defense Level 2p to 1
- Power Gauge 1p to Max
Now exit that, and go to practice mode and choose advance mode. Now pick a character you want or like it doesn't matter. For the RoadMap I am going to use Joe Higashi (Top Row, sixth over). It does not matter who the CPU punching bag is. Then go to command and then edit. Input "Down, Down & Right, Right, Down, Down & Right, Right, LP, and SP" Hit END to save and back up. Now hit exit, and say yes to command change. Now that Super Desperate move is assigned to a single press of the .
If you chose a different character, go to skill, and flick to the last page of skills for that character's Super Desperate Move. SDMs require both LP and SP.
Now that all your set up is done head to arcade mode and just spam . Given that you have one perfect match and Leona (Uri) or Lora (Uri) show up you should have all but one offline achievement left to get. This achievement is "Assist Attack." It's worth noting that you character and the other characters you chose must be from the same team and like each other in order for this achievement to work. If all went well then you should have gotten "Untouchable," "Perfect Match," "Uncontrollable," "Score Hunter," "Champion," and "The King of Fighters."
Step 2 - Online:
You will need a boosting partner for this as the online is dead. All matches must be done in ranked matches. In order to expedite the process the loser can quit once the match has started. First go for "10 Continuous Wins" for each person, this will earn the winner "5 Continuous Wins" and "Rookie" as well. After that each person will need 90 more wins will knockout "Professional" and "The King" for both players.
Given that you manually enter combos without ever needing to perform them and assign them to a single button press, this game becomes easy. It just is a bit of grind to finish the online component of the achievements.