Enter the codes at the Press Start screen.
Cheat Menu:
Left, Down, L, L, Up, Right, Left, Up
All Items:
C-Right, Down, L, C-Up, Left, C-Right, Left
Choose Level:
R, L, R, C-Down, Right, Up, Left, C-Up
Immortal:
R, C-Right, R, L, R, R, R, Left
No Monsters:
L, C-Up, Left, L, C-Down, Right, Left, Right
Get the best selection of Cheats, Codes, Walkthroughs/Guides/FAQs, Unlockables, Tips, Tricks, Secrets, and more from Cheat Code Central.The Genie has more
Duke Nukem: Zero Hour (PAL) Cheats at CheatingDome.com.