At the Main Menu hold Select L1 R1 then press Square Circle Triangle Circle Square.
Animal Ships and Shark Ship
Turn on the game and while the game is loading hold Select Start L1 R2. When the Copyright screen appears release the buttons.
At the Main Menu hold Select L1 R1 then press X X X X Circle Triangle Square.
Pause the game and hold Select L1 R1 then enter any of the following "Codes":Key:S SquareC CircleT TriangleX XR Right / L Left / U Up / D Down
|Machine Gun||S C X S C X T|
|Infinite Energy||T X S C T X S C|
|Infinite Weapons||X X S S C C T|
|Infinite Time||T S C X T S C X|