Here is the full list of all 48 Coffee Crisis achievements.
Activate a cheat code
Complete game with Nick
Complete stage 10/defeat Overlord
Complete stage 9/defeat Darth B.
Complete stage 8
Complete stage 7
Beat a boss with max health
Destroy one of each type of breakable object
Complete stage 6
Defeat robot boss in stage 6
Complete stage 5/defeat Skinny Chestknee
Complete stage 4
Defeat 25 aliens
Activate a level password
Complete stage 3
Defeat bouncers in stage 3
Earn 700 energy points in minigame
Complete mini-game
Complete stage 2
Defeat Big Blue Alien boss in stage 8
Earn an extra life from high score
Defeat 25 enemies
Complete stage 1
Complete game with Ashley
Complete game in co-op mode
Lose 25 lives
Complete the game thrice
Collect 25 lives
Collect 25 invincibility powerups
Collect 25 extra attack powerups
Achievement awarded to achievers who achieve all of the achievements
Complete game on Metal difficulty
Complete game on Death Metal difficulty
Complete Death Metal difficulty under 30 minutes
Complete Death Metal difficulty under 45 minutes