Get all other trophies
Kill 750 enemies.
Complete level 7.
Complete level 6.
Complete level 5.
Kill 500 enemies.
Buy any cat upgrade.
Complete level 4.
Kill 250 enemies.
Preform an UltraViolence kill combo.
Complete level 3.
Kill 100 enemies.
Complete level 2.
Kill 50 enemies.
Preform a Brutal kill combos.
Kill 25 enemies.
Complete level 1.
Preform a Deadly kill combo.
Preform a Cruel kill combo.