Stage skip:
At the title screen go to options then go to password and put in
GOLVL followed by the level nember. Highlight accept and press X.
Invinsibility & Unlimited Ammo:
Enter the password 1GOTPINK8CIDBOOTSON. Highlight accept and press X.
The words "cheat activated" appear. Go to the main menu and you will see a
new option, cheats. Highlight cheats and press X.