Finish 75 quests cumulatively.

Kill 250 zombies with modified weapons.

Breach a locked door with the first blow.

Kill a Suicider with a grenade.

Complete 25 quests while playing with at least one co-op partner.

Kill 250 zombies using edged melee weapons.

Create weapons to rival the gods of fire or thunder.

Land a Viewtiful Combo. (Arcade/online only)

Sever 100 limbs.

Complete 5 quests with 3 co-op partners.

Drive a total distance of 10 kilometers.

Reach level 10.