Codes
Level Select
Pause the game and press: Right, Square, Triangle, Square, Triangle, R1, L1, R1, L1, Circle. The words, "All levels open" should appear at the bottom of the screen. Unpause the game and pick your level.
Infinite Lives
Pause the game and press: Right, Square, Triangle, Square, Triangle, X. The words "Infinite Lives On" should appear at the bottom of the screen.