PERFECT WEAPON
Books: Playstation Secret Codes - Secret Codes 2003
All Sphere Mode
Pause the game and press L1 + L2 + Circle + Square.
Big Head Mode
Pause the game and press L1 + L2 + R2 + Down.
Invincibility
Pause the game and press Circle + Square + Right, Left + R1 + R2.
If you entered the code correctly, you will hear an explosion.
Level Select
Pause the game and press R1 + Square, Triangle, Circle, X.
Passwords
Level Password
1st Moon XSXSSCSC
2nd Moon CXXTCCXT
3rd Moon CTSCSSTT
4th Moon CXXXTCTT
5th Moon XXSXSSTC
NOTE: You can't save the game if you use the 5th Moon password.
Play as Cyborg Blake
Pause the game and press R1 + R2 + Triangle + Circle. If you entered
the code correctly, the phrase "No Way!" will be spoken.