Shinobido: Way of the Ninja Codes -

Iron Stomach:
Press to pause your game, then hold + and press , , , , , , . A sound will confirm correct code entry. All items Goh eats will be edible and will restore health.

Alternately, view all three normal endings.

Fake death:
Press to pause your game, then hold + and press , , , , , , . A sound will confirm correct code entry. Press the and your character will die. You can also do a Mega Jump by pressing then quickly pressing .