Pause the game, press and hold R2 or L2 and press Left, Cir, Up, Down, Right, Right, Left, Tri, Up, Down. If you entered the code correctly, you'll hear a confirming sound. Unpause the game and press Select to bring up the Debug menu.
Bonus Levels Password, Infinite Lives and Invincibility
Bonus Levels Password: This password opens up all the bonus levels in the game: L1 R2 L2 R1 X Cir R2 R1 L2 R1 L2 L1 X Cir Square Tri R2 R1 L2 L1 X Cir Square Tri R2 R1 L2 Tri
Pause the game and enter any of the following codes: Infinite Lives: Press and hold L2 or R2 and press Up, Up, Down, Right, Tri, Down. Unpause the game and you will have infinite lives. Invincibility: Press and hold L2 or R2 and press Left, Right, Tri, Down, Right, Left. Unpause the game and you will be invincible.
Level Select, One-Liners, and Timer Cheat
Pause the game and enter any of the following codes:
Level Select: Press and hold R2 or L2 and press Right, Right, Left, Right, Tri, Down, Right. Unpause the game and press Select to bring up a level-select menu.
One-Liners: Press and hold R2 or L2 and press Tri, Left, Cir, Up, Down. Unpause the game and press Select to make Gex crack a joke.
Timer Cheat: Press and hold R2 or L2 and press Right, Tri, Right, Left, Tri, X. Enter the Game Stats. menu, and press l to automatically receive the best time for any level.
Planet X Password: At the title screen, go into the "Password" option and enter the following password: RYYRYXKB. This takes you to the secret stages of Planet X.Stage Select, Open Levels, Immediate Powers, Super Jump, Invincibility, Electric Spirit, 99 Lives, Flame Breath, Cold Breath.
Password: Note: You must hold R1 and bring down the item menu (press Select) while entering the following button presses for these two tricks:
Stage Select: Go to the Dome Area, and press X, Square, X, Right, Up, Left, Circle, Circle, Down, Down.
Open All Levels: Go to any stage and press Circle, Start, Right, Up, Square, Left, Left, Up, Start.
Immediate Powers: Pause the game and hold R1 while entering these codes to give you the following immediate abilities:
Super Jump: Press X, Circle, Up, Up, Down, Right, Right
Invincibility: Press X, Square, Down, Down, Up, Down, Right
Electric Spit: Press Right, Left, Right, Circle, Triangle, Right, Circle, Down, Right
99 Lives: Press Up, Circle, Triangle, Down, Right, Square, Down
Flame Breath: Press X, Up, Right, Up, Right, Right
Cold Breath: Press Circle, Circle, Left, Down, Circle, Up, Right