Nintendo 64 Cheats N64 Cheats | PSX Cheats | PSX 2 Cheats | PC Cheats | DC Cheats | Home New & Used N64 Games Duke Nukem: Zero Hour Enter the codes below when "Press Start" appears at the opening screen. For all the codes, you will hear a sound after you have entered the code. Freeze Thrower/Unlimited Ammo: Down, Up, A, L, R, Z Shotgun/Unlimited Ammo: Up, Down, Left, Right, L, R Action Mode: Down, Down, A, Z, Z, Left, A 1st Person View Down, Up, L, B, Z, Left, C-Up, C-Right, C-Left, Z Unlock MultiPlayer Characters(GROUP 1): A, L, R, Left, B, Down, Up Unlock MultiPlayer Characters(GROUP 2): B, A, A, R, L Unlock MultiPlayer Characters(GROUP 3): L, L, Up, Down, R, B, A Unlock MultiPlayer Characters(GROUP 4): B, B, R, Left, A Unlock MultiPlayer Characters(GROUP 5): Right, B, Left, L, A, Z Unlock MultiPlayer Characters(GROUP 6): Up, Down, B, A, A, Left Thanks to the codemeister More N64 Cheats