The following cheats, codes and secrets are available for
PO'ed on the PlayStation video game console. You can also look for
PO'ed hints and tips, and submit your own. For more PS1 cheats look at the
PS1 Cheats index, featuring hundreds of games.
Disable Invulnerability
Enter the Weapon Selection screen and press Circle + R1.Disable No Collisions
Switch to Jetpack mode and press Triangle to display the Weapon Select screen. Then, press L1 + Right + Down.Fart Sounds
Highlight a game from the Load Game menu and press L1 + L2 + R1 + R2. Exit the Load Game menu. Now levels with the Butthead monster are modified.Full Ammunition
During gameplay, do a back flip by pressing Square + L2. While in the air, press Right + X + Circle. Ammunition for all weapons is refilled.Full Health
During gameplay, do a back flip by pressing Square + L2. While in the air, press Down + X + R2. Ox's health refills.Full Inventory
During gameplay, press Square + Select to enter 3D Map mode. Press Left until the map arrow points toward you, then press Start to return to Standard Map view. Press L1 + Square + X + Circle while the camera is rotating. Press Select to exit Map mode. Press TrianInvincibility
Use the "full inventory" code or find the drill and place it in inventory. Use the frying pan as the current weapon. Enter the Weapon Selection screen and highlight the drill, then press Circle + R1. The number "999" flashes next to the health meter.Level Select
At the main menu, press L1 + L2 + R1 + R2 + Up. Press Circle to start a new game. At the Difficulty menu, press L1 + L2 + R1 + R2 + Down. Choose a difficulty and the level select menu appears.No Collisions
Switch to Jetpack mode and kill an alien. Stand on the alien and press Triangle to display the Weapon Select screen. Then, press L1 + Right + Down. Now Ox can fly through the walls and move anywhere in the level.View Ending Sequence
Save at least one game. Then, go to the main menu and highlight "Load Game." Hold Right, then press Circle. Release Right and press Triangle to cancel. Next, press Left + Square, then press Triangle to cancel again.
