During gameplay type these codes in to get that powerup:

Code            Effect
ANCHORME        Anchor
CLAWME          Claw
COOLME          Coolant
PROBEME         Probe

To use these codes you must have the new multiplayer version of the game.

At the menu:       Effect
FEZME           Race as Fez Boy
LEVELME         Access all levels
ROCKETME        Access new rockets
ANCHORME        Anchor power-up
CLAWME          Claw power-up
COOLME          Coolant power-up
PROBEME         Probe power-up