Unlock All Available Weapons
Pause the game, then hold L1 and press Right, O, O, Triangle, O.
Invisible Mode
Pause the game, then hold L1 and press Up, Left, Right, Up, O.
Slow Motion Mode
Pause the game, then hold L1 and press Left, Down, Up, Right, O.
Fish Eye Lens
Pause the game, then hold L1 and press Left, Up, Right, Down, O.
Beagle Holes, Footprint and Burns
Pause the game, then hold L1 and press Down, Up, O, Triangle, O.
Alternate Fade
Pause the game, then hold L1 and press Right, Up, Up, Down, O.
Alternate Lighting
Pause the game, then hold L1 and press Up, Right, Up, Down, O.