Pause the game, hold L2 and enter the following: Invincibility:
Right, Right, Left, Right, Left, Left, Right, Left, L1, Up, Up, Down, Down, Up, Down, Up, Down, L1.
99.9% charge:
R2, R2, Left, Right, Up, Down, Right, Left, Up, Down, Triangle.
Full blue power, missiles, and bits:
R2, R2, Left, Right, Up, Down, Right, Left, Up, Down, Circle.
Full red power, missiles, and bits:
R2, R2, Left, Right, Up, Down, Right, Left, Up, Down, Square.
Full yellow power, missiles, and bits:
R2, R2, Left, Right, Up, Down, Right, Left, Up, Down, X.
Bonus Ships:
Enter the following as passwords at R's Museum:
- 5270 0725 - Lady Love ship (#3)
- 2078 0278 - Strider ship (#24)
- 1026 2001 - Mr. Heli ship (#59)
- 1009 9201 - Curtain Call ship (#100)