Invincibility:
Select the "Classified Files" option at the main menu. Press X, then enter TEAMBUDDIES as an unlock code.

Unlimited ammunition:
Select the "Classified Files" option at the main menu. Press X, then enter BLASTRADIUS as an unlock code.

Level select:
Select the "Classified Files" option at the main menu. Press X, then enter KINGSLEY as an unlock code.

Bonus level 1:
Select the "Classified Files" option at the main menu. Press X, then enter KREUZLER as an unlock code.

Bonus level 2:
Select the "Classified Files" option at the main menu. Press X, then enter SHEARER as an unlock code.

Bonus level 3:
Select the "Classified Files" option at the main menu. Press X, then enter UBERDOOPER as an unlock code.

Mini-game:
Enable the "Bonus level 3"code, then hold Left Analog-stick Up and quickly press Square, Triangle, Circle, Triangle , Square, Circle when the introduction sequence to the bonus level begins. Press X to stop the introduction sequence and the mini-game will begin. Press X to move and Triangle to change views during the mini-game.