Extra levels...
	Kid Niki...
	Preview first Boss...
	Sound test...
	Special game...
	Suicide...

Enter FbgJ IYAX or GdBM IABg as a password to play additional levels.

Hold A on controller two at title screen, until Kid Niki appears.

Hold Down and power on the NES. Press Up on controller two after the screen turns white.

Hold A + B on controller two at the title screen and press Reset. Press A or B to select a sound and Up, Down, Left, or Right to play them.

Hold Select and power on the NES. Press Up on controller two after the screen turns white.

Press Select during game play to end the current game if you become stuck.