Play as Cyborg Blake:
Pause the game and press R1 + R2 + Triangle + Circle.

Unlimited Health:
While playing, pause the game then simultaneously press Circle + Square + Right, then simultaneously press R1 + R2 + Left.

All Sphere Mode:
Pause the game and press L1 + L2 + Circle + Square.

Level Select:
Pause the game and press R1 + Square, Triangle, Circle, X.

Big Head Mode:
Pause the game and press L1 + L2 + R2 + Down.

Ice Moon
(X), (Square), (X), (Square), (Square), [Circle], (Square), [Circle]

Garden Moon
[Circle], (X), (X), [Triangle], [Circle], [Circle], (X), [Triangle]

Forest Moon
[Circle], [Triangle], (Square), [Circle], (Square), (Square), [Triangle], [Triangle]

Desert Moon
[Circle], (X), (X), (X), [Triangle], [Circle], [Triangle], [Triangle]

Proteus Moon
(X), (X), (Square), (X), (Square), (Square), [Triangle], [Circle]