Unlimited Lives/Energy
During the game, press Start to pause. Then, enter Left, A, Z, Y, Down, A, Y, Down to increase your energy. Then, ener Y, A, Right, Down, Down, A, Left, Right to increase your lives.
Nine Lives
Pause gameplay and then press Y, A, Right, Down, Down, A, Left, Right.
Mega Plasma Gun
Pause the game and Press C, A, Right, Right, Up, Down, Up, Left.
3 Finger Gun
Pause the game and Press Down, A, Up, B, Right, Right, C, Right.
Refill Ammo
Pause the game and Press A, Up, Down, Right, Right, Left, X, C.
GET
HELP: 
HOMEPAGE
CHEAT CODES & HINTS
