All Chapters: Go to the Press Start screen then to the New Game screen and hold L1 + L2 + R1 + R2 and press Down, Left, Down, Triangle, Down.


Unlimited Ammo: Go to the Press Start screen then to the New Game screen and hold L1 + L2 + R1 + R2 and press Up, Left, Down, Right, Circle.


Unlimited Shotgun: Go to the Press Start screen then to the New Game screen and hold L1 + L2 + R1 + R2 and press Right, Circle, Circle, Circle, Square.


Weaker Enemies: Go to the Press Start screen then to the New Game screen and hold L1 + L2 + R1 + R2 and press Square, Left, Triangle, Up, Down.


2 Guns: Go to the Press Start screen then to the New Game screen and hold L1 + L2 + R1 + R2 and press Triangle, Circle, Up, Up, Up.


One Shot Kill: At the main menu hold R1+ R2+ L1+ L2 and press triangle circle(3) left