Defeat a Majini with a headshot while it's jumping.

Defeat 30 enemies with the Stun rod.

Stop an armored truck by taking out the driver.

Defeat a Majini using the electric current from a transformer.

Purchase all available alternative costumes in Bonus Features.

Find all 4 types of eggs.

Chain the maximum number of combos together in one go.

Complete all chapters on Normal.

Build up a certain level of trust with your partner.

Kill at least 30 enemies with a melee attack

Complete Chapter 12 on any difficulty setting

Dismember 1000 Limbs