Defeat an enemy with a knife.

Combine two items together.

Foot stomp 12 aliens

Kill 15 aliens with melee attacks while on steroids

Kill 30 aliens with headshots

Execute 20 aliens

Kill 250 aliens

Shoot down the blimp above the stadium

Kill 10 aliens with Trip Mines

UNIVERSE: Play and Win 50 matches.

Win a Title by cashing in your custom MITB. (PLAY mode against A.I.)

Attack an opponent with the Tripod Foreign Object (PLAY mode against A.I.)

MyCAREER: Clear Chapter 4.