Invincibility
Pause the game and press Triangle, Triangle, Circle, Circle, L1, L2.

All weapons
Pause the game and press Square, Square, Circle, Circle, L1, L1.

Infinite ammunition and grenades
Pause the game and press L1, L1, R1, R1, Circle, Circle.

First person view
Pause the game and press Circle, Triangle, Triangle, Square.

Dampen camera
Pause the game and press Triangle, Triangle, Triangle, Square, Square, Square.

Disable laser sight
Pause the game and press L1, L1, Triangle, Triangle, L1, L1, L1.

Slow rockets
Pause the game and press L1, R1, R1, L1, Triangle, Square.

Big head mode
Pause the game and press R1, R1, L1, L1, Triangle, Triangle.

Electronic mode
Pause the game and press Square, Square, L1, L1, R1, R1.

Skeleton mode
Pause the game and press Circle, Square, Triangle, Triangle, Square, Circle.

Head pop off
Pause the game and press Square, Square, Circle, Circle, R1, R1.

Funk mode
Pause the game and press Circle, Circle, Square, Square, L1, L1.