PO'ed

Codes

Code	Effect
In foot mode do a backflip by pressing Square + L2. During the backflip press Right + X + Circle	Ammo refill
At the main menu select Load Game and press L1 + L2 + R1 + R2	Fart Noises
While playing do a backflip by pressing Square + L2. While in the air press Down + X + R2	Full Health
Enter map mode and press left until the arrow is pointing at you. Press Start to rotate into the standard view. During the rotation press L1 + Square + X + Circle	Full Inventory
At the main menu hold L1 + L2 + R1 + R2 + Up, then release and start a new game. At the difficulty level screen hold L1 + L2 + R1 + R2 + Down	Level Select
Highlight load game on the main menu, hold Right and press Circle. Release Right and press Triangle + Left + Square, then Triangle once more	Watch Final Sequence

Invulnerability
Mare sure you have the drill. The trick won't work unless you have it. Go somewhere safe and press Triangle to bring up the Weapon Select Menu. Choose the frying pan with L1 or R1. Press Triangle to confirm. Press Triangle again to bring up the menu again. Now, press and hold Circle+R1 to increment the selected weapon until you get a flashing 999 in your health counter.
Contributed By: ATadeo.
No Collisions
Switch to jetpack mode and kill an alien. Stand on the alien and press Triangle to display the Weapon Select screen. Press L1 + Right + Down. Ox will now beable to fly through walls.
Contributed By: BobFromPikeCreek.

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