Here is the full list of all 35 Apocalypse: Party's Over achievements.
Reach level 20
Exterminate 100 pigeons
Finish Troll Hue Hue
Finish Funk stage
Send 100 enraged Football Fans to the grave
Finish Otaku stage
Reach level 10
Send 10 possesed Teleshabbies to the grave
Send 50 Sailor Mules to the grave
Finish a stage without using the special
Finish a stage killing all the pigeons
Send 50 Teleshabbies to the grave
Finish a stage breaking every piece of the scene
Finish Politician stage
Finish the game on Half-boner mode
Finish the game on Fuckin' Manly mode
Finish the game on Half-boner mode with all the likes
Finish the game on Fuckin' Manly mode with all the likes
Finish the game
Finished the game with 2 players
End stage without taking damage
Send 100 False Prophets to the grave
Send 100 Funckers without headphones to listen to that shit to the grave
Send 100 Katias Big Butt to the grave
Send 100 Clowndidates to the grave
Send 100 Money-Grubbings to the grave
Send 100 Terrorists to the grave
Reach level 30
Buy all the Cosplays
Buy all the Weapons
Send 50 foes to the grave at once during Junk's Challenge
Send 100 foes to the grave at once during Junk's Challenge
Send 200 foes to the grave at once during Junk's Challenge
Send 500 foes to the grave at once during Junk's Challenge
Send 1000 foes to the grave at once during Junk's Challenge