99 lives ...
	Alternate Cheat Mode...
	Double item value...
	Invincibility ...
	Select level...
	View ending sequence...

Press [F1] during game to display the in-game menu. Then press [Ctrl] + A + L. Type “325” at the prompt

Start the game with one or more of the following command line parameters to activate the corresponding effect.

Effect	Parameter
Disable sounds	-Q
Enable joystick	-J
Enable keyboard	-K
Enable sounds	-S
Force CGA display	-C
Force EGA display	-E

Press [F1] during game to display the in-game menu. Then press [Ctrl] + A + L. Type “822” at the prompt.

Press [F1] during game to display the in-game menu. Then press [Ctrl] + A + L. Type “642” at the prompt. (Note: To disable, type “643”.)

Press [F1] during game to display the in-game menu. Then press [Ctrl] + A + L. Type “7#” at the prompt, where # is the level you wish to warp to.

Press [F1] during game to display the in-game menu. Then press [Ctrl] + A + L. Type “589” at the prompt.