Here is the full list of all 24 Super Turbo Demon Busters! achievements.
Complete 50 raids
Kill an enemy while your health is at 1%
Kill 1000 enemies
Break 50 crates
Have 10 guns in your arsenal
Kill 100 ghosts
Earn 50,000 credits
Level up a mercenary once
Search 150 corpses
Earn 5000 credits
Kill 25 monsters
Complete your first quest
Complete your first raid
Kill your first monster
Kill three enemies with a shotgun round
Kill 250 monsters with a machine gun
Kill 2500 monsters
Kill 5000 monsters
Kill 250 zombies
Kill 10,000 enemies
Level up a mercenary 20 times
Complete 100 quests
Unlock all mercenaries
Kill 20,000 monsters