Here are some cheats and tips for the game Gex.
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.
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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.
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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