Invincibility and Stage Skip...
	View Endings...

Press the following at the main menu to be invincible or to skip the stages.

Effect	Code
Left, Left, Right, Right, Left, Left, Right, Start the game	Stage Skip (press 2 during Stage Select to skip to next set of stages)
Left, Right, Right, Left, Right, Left, Left, Start the game	Invincibility

Press the following at the main menu to view one of three endings.

Effect	Code
Left, Left, Left, Left, Left, Left, Right, Start the game	Good Ending
Left, Left, Left, Left, Right, Right, Start the game	Bad Ending 1
Left, Left, Right, Right, Right, Start the game	Bad Ending 2