Ninja Boy Cheats - GameBoy
Primary Collection of Cheats
Cheat mode
Press [Up]x2, [Down]x2, [A], [B],
[A], [B] at the title screen. Then hold [A] and
press [Start]. Press [Up] or [Down] to select a
new starting level, with 80 lives, and 99 miracle kicks will now
be available.
Continue game
Hold [A] + [B] and press [Start] when
the title screen reappears after the game over screen.