(last update - Dec 23 2002)
Total current cheats: 2
print mePower-Up Weapons
Pause the game, then hold L2 and press the Up, Down, Left, Right, Triangle, X and Square buttons. Continue to hold L2 and then unpause it.
print meStage Skip
Pause the game, and hold the L2 button, then press the following:
Up, Down, Left, Right, Triangle, X, X, Triangle, Right, Left, Down, Up, Start.