Duke Nukem armor:
Enter Duke Nukem as a name to receive armor equivalent to that worn by that character.

Cheat mode:
Enter one of the following codes at the indicated screen to activate the corresponding cheat function.

Effect	Screen	Code
No damage	Game play	drub
Unlimited ammo	Game play	dread
Unlimited turbo	Game play	drag
Rocket fuel	Game play	drink
Mushroom effect	Game play	drug
$500,000	Menu	drool
$1,000	Menu	draw
Drop 10 points	Menu	drop
Get 10 points	Menu	drive