Here is the full list of all 8 Among Ass: Trilogy achievements.
Get the Bad Ass role during a match.
Finish a match with the "Only Repair" preset with a Regular Ass win with only one player.
Never die and win a match as a Regular Ass (must have at least 1 Bad Ass in the game).
Resurrect an ally with the appropriate ability.
Die 5 times in a single match and win as a Regular Ass.
Complete a match with the "Assesgeddon" preset with any outcome.
Die for the first time.
Start match with gachi mode.