Duke Nukem 64

					
Cheat Menu

needs to be turned on for most of the codes below to work
At the Main Menu press Left Left L L Right Right Left Left.
All Items
Turn on Cheat Menu then return to the Main Menu. Press R CRight Right L CLeft Left CRight Right.
Level Warp
Turn on the Cheat Menu then press L L L CRight Right Left Left CLeft.
Invincibility
Turn on the Cheat Menu then press R R R R R R R Left on the DPad.
No Monsters
Turn on the Cheat Menu then press L CLeft Left R CRight Right Left Left Right.