At the "Press Start" screen, press Up(2), Down(2), Left, Right, Left, Right, B, A. If you entered the code correctly, you will hear a sound.
Level Location Password
2 Downtown Wolverine's head, Wolverine's claws, XMen sign, Wolverine's
3 Downtown Wolverine's claws, Sabrewolf, Wolverine's body, Wolverine's
4 Tokyo Skull, Wolverines head, XMen sign, Wolverine's claws
8 Lab Claw, Blue Head, XMen sign, Skull
9 Lab Skull, XMen sign, Wolverine's claw, Sabrewolf
End Blue Head, Skull, XMen sign, Lady
At the title screen-when the words "Press Start" appear - press Up, Up, Up, Up, Down, Down, Down, Down, Left, Left, Left, Left, Right, Right, Right, Right, B, A; you'll hear a sound to confirm the code. Note: After you hear the sound you must press Start to advance to the main menu before the title screen fades or the code will not work. With this code in place, you can skip to the next stage at any time during the game by pressing Select.