X2: Wolverine's Revenge - Invincibility

100 lives:
Hold L and press Right7 at the main menu. A sound will confirm correct code entry.

All power-ups:
Hold L and press Right, Left, Right, Left, Right, Left, Right at the main menu. A sound will confirm correct code entry.

Unlimited double jumps:
Hold L and press Select, Left, Up, Down2, Up, Down at the main menu. A sound will confirm correct code entry.

Regenerate with claws out:
Hold L and press Right, Up, Down, Right, Left, Select2 at the main menu. A sound will confirm correct code entry.

Alternate Costumes
If you want to unlock the alternate costume you have to press the next buttons in a short time as quick as you canUP DOWN, UP DOWN, LEFT RIGHT, LEFT RIGHT, B A