Level Passwords:

Enter the icons at the password screen
to open the corresponding level. 

Level 3: Wolverine Head, Claws, X, 
Wolverine Body

by unknown


Level Codes:

2 Downtown - Head, Claws, X-Men sign, Body  
3 Downtown - Claws, Sabrewolf, Body, Head  
4 Tokyo Skull - Head, X-Men sign, Claws.  
8 Lab Claw - Blue Head, X-Men sign, Skull  
9 Lab Skull - X-Men sign, Claws, Sabrewolf  
End - Blue Head, Skull, X-Men sign, Lady

by unknown