Here is the full list of all 28 Corpse Killer - there are 25th Anniversary Edition achievements.
complete the game without aborting a mission
purchase all behind the scenes photos
purchase all behind the scenes videos
complete the secret quest
complete all of winston's quests
complete all of julie's quests
purchase all music tracks
purchase all documents
purchase your first item
normal difficulty
defeat hellman
rescue cooper
rescue duffy
rescue fleming
get the best outcome in the graveyard
rescue magliano
complete the gate
complete the village
complete the swamp
complete every battle scene
complete the game without normal ammo reaching zero
get 666 kills
make 666 zombies explode
complete all quests
bloodthirsty difficulty
cannibal difficulty
unlock all game videos
unlock all bonus content