Extra Lives:
L2, R2, L1, R1, Down, Up, Up, Down
Stage
Select:
L2, R1, L1, R2, Left, Right, Circle, Square, R2,
L2
Unlimited Continues:
L2, R2, L1, R1, Left, Right, Down,
Up
Gyruss game:
L2, L1, Left, Right, R1, R2
Pac-Tank game:
R2, R1, Right, Left, L1, L2
Weapon Select:
L2, R2, L1, R1, Up, Down, Down, Up. When the game
starts, press and hold Square and press Triangle.
Sound Test:
R2, R1, L1, L2, Up, Right, Down, Left.
Movie Test:
L2, L1, R1, R2, Up, Left, Down, Right
Infinite Health P1 800dc7840009
Thanks to Revolution readers Brian Burow, John Thomas Herrin, Matt, and InTeL!