Gex 3: Deep Cover Gecko

Invulnerability
Pause gameplay, hold L2 and press: Down, Up, Left, Left, Triangle, Right, Down.

Select One-Liners
Pause gameplay, hold L2 and press: Down, Right, left, Circle, Up, Right, then press Select for one-liners.

10 Lives
When you have access to the vault, press: Square, X, Circle, Circle, triangle, Square.

1 Life
When you have access to the vault, press: Triangle, Circle, Star, Square, Square, X.

Invincibility
When you have access to the vault, press: Square, Star, Triangle, Square, Triangle, Diamond.

Play as Alfred
When you have access to the vault, press; Square, X, Triangle, Square, Star, Star.

Play as Cuz
When you have access to the vault, press: Square, Diamond, Square, Square, Triangle, Diamond.

Play as Rex
When you have access to the vault, press: Square, Star, Star, Square, Triangle, Triangle.

Gex Video 1
When you have access to the vault, press: Circle, Triangle, Square, Star, Diamond, Star.

Gex Video 2
When you have access to the vault, press: Diamond, Star, Square, X, Triangle, Circle.

Gex Video 3
When you have access to the vault, press: X, Diamond, Star, Triangle, Triangle, Circle.

View All FMV Sequences
When you have access to the vault, press: Star, X, X, Circle, Square, Triangle.

Eight Hit Paws
When you have access to the vault, press: Square, Diamond, Triangle, Triangle, Star, Diamond.

Debug Mode
Pause gameplay, hold L2 and press: Up, Circle, Right, Up, Left, Right, Down (press Select for Debug menu).

98% Complete Password:
Square, Circle, R1, Triangle, L1 R1, L1, R1, Circle, Circle, R1 Triangle, L1, R1, Circle, L1, Triangle Circle, R1, Triangle, L1, R1, Circle L1, Triangle, Circle, R1, L1

Best Ending Password:
R1, R2, X, L2, Square X, Square, R2, R2, R2, X L2, Square, X, R2, Square, L2 R2, X, L2, Square, X, R2 Square, L2, R2, X, Square