Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Brutal	Preform 20 Brutal kill combos.
Carnage	Preform 20 Carnage kill combos.
Cruel	Preform 30 Cruel kill combos.
Deadly	Preform 30 Deadly kill combos.
Exterminator	Buy all upgrades.
Firestarter 1/3	Burn 50 enemies.
Firestarter 2/3	Burn 100 enemies.
Firestarter 3/3	Burn 200 enemies.
King of Violence 1/5	Kill 100 enemies.
King of Violence 2/5	Kill 250 enemies.
King of Violence 3/5	Kill 500 enemies.
King of Violence 4/5	Kill 1 000 enemies.
King of Violence 5/5	Kill 2 000 enemies.
Punisher	Kill 666 demons.
Sadistic	Preform 10 Sadistic kill combos.
Satan's killer	Defeat the Satan and complete the game.
Savior of the Desert	Defeat the second boss.
Savior of the Forest	Defeat the first boss.
Savior of the Ice	Defeat the third boss.
Tormentor	Kill 100 obsessed bunnies.
UltraViolence	Preform 10 UltraViolence kill combos.