Ten
lives
Hold Select + Start
+ A + B on controller one and A + B on controller two. Power on the NES while
those buttons are held. Release the buttons when the title screen appears.
Then, hold A + B on controller one and B on controller two. While keeping those
buttons held, press Start on controller one.
Bonus
life
Stand in a moat and
kill seven ninjas with your character's sword. Catch the blue creature that
appears to receive a bonus life.
