Alright, go to the menu where you choose from either slot 1,2,3,or 4.
Then, hold down L and enter down, up, down, down, up, down, select to become invincible.
To earn all powerups, hold L and press right, left, right, left, right, left, right.
To give Wolverine 100 lives, hold L and press "right" 7 times.
And last, but not least, in order to make your health go up with your claws extended, press: right, up, down, right, left, select, select.
(you may have to enter these every time you play.)
Well thats all that I have for now, later!!
Added by: Kurt Wagner Nov 1st 2003, ID#867