Duke Nukem: Zero Hour Cheats N64

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Duke Nukem: Zero Hour is a Shooter/First-Person Shooter video game for Nintendo64 developed by Eurocom and published by GT Interactive. It's rated Mature by the ESRB and 7 of our users have voted it 4.0 out of 5 stars.

Our newest cheats for Duke Nukem: Zero Hour were added May 23, 2003.

 
 
 
 
 

Cheats

 

Cheat Menu

At the press start screen, press Down, Down, A, Z, Z, Left, A. You'll hear a tone when entered correctly.

All Cheat Code In The Co-operative Mode

At the cheat menu, press L, B, A, R, Z(5), C up, C down, C left, L(3), Z, B, A, C up, C down, L, B, A, R, Z(3).

Invisibilitiy In The Multi-players Mode

In the multi-players mode, press start, then press Z, B, Z, B, Z, B, Z, B, A(3), L, R, L, R.

Shotgun With Infinte Ammunition

When "Press Start" appears at the opening screen, Press Up, Down, Left, Right, L, R. If you entered the code correctly, you will hear a sound.

Weather

When "Press Start" appears at the opening screen, press Z, A, L, B, Down, Up, R. If you entered the code correctly, you will hear a sound. Alternately, obtain all secrets in level 6, "Under Siege", to unlock the cheat option for weather.

Ice Skin

When "Press Start" appears at the opening screen, press B, Z, Up, L, A, C-Right, A. If you entered the code correctly, you will hear a sound. Alternately, rescue all babes in level 5, "Fallout", to unlock the cheat option for ice skin.

Flat Shade Map

When "Press Start" appears at the opening screen, press Down, Up, Left(2), A, Right, Down. If you entered the code correctly, you will hear a sound. Alternately, obtain all secrets in the "Wetworld" secret level to unlock the cheat option for flat shade map.

Big Gun Mode

When "Press Start" appears at the opening screen, press C-Up, C-Left, Z, B, L, Z, A. If you entered the code correctly, you will hear a sound. Alternately, kill all opponents in level 3, "Nuclear Winter", to unlock the cheat option for big gun mode.

Big Head Mode

When "Press Start" appears at the opening screen, press B, Up, Down(2), A, Z, A, Right. If you entered the code correctly, you will hear a sound. Alternately, rescue all babes in level 2, "Liberty Or Death", to unlock the cheat option for big head mode.

High Speed Zombies

When "Press Start" appears at the opening screen, press A(2), Z, A, R, C-Down, B. If you entered the code correctly, you will hear a sound. Alternately, rescue all babes in level 8, "Dry Town", to unlock the cheat option for high speed zombies.

Action Nuk'em Mode

When "Press Start" appears at the opening screen, press Down(2), A, Z(2), Left, A. If you entered the code correctly, you will hear a sound. Alternatively, successfully complete the game to unlock Action Nuk'em mode, which allows Duke to kill opponents with one shot.

First Person View

When "Press Start" appears at the opening screen, press Down, Up, L, B, Z, Left, C-Up, C-Right, C-Left, Z. If you entered the code correctly, you will hear a sound.

Skin Select

When "Press Start" appears at the opening screen, press C-Left, R, Left, Up, Down, B, A, Z. If you entered the code correctly, you will hear a sound. Skins may be selected in single player mode, but may not be viewed during selection.

Group 6 Multi-player Characters

When "Press Start" appears at the opening screen, press Up, Down, B, A(2), Left to unlock all Group 6 multi-player characters. If you entered the code correctly, you will hear a sound.

Group 5 Multi-player Characters

When "Press Start" appears at the opening screen, press Right, B, Left, L, A, Z to unlock all Group 5 multi-player characters. If you entered the code correctly, you will hear a sound.

Group 4 Multi-player Characters

When "Press Start" appears at the opening screen, press B(3), R, Left, A to unlock all Group 4 multi-player characters. If you entered the code correctly, you will hear a sound.

Group 3 Multi-player Characters

When "Press Start" appears at the opening screen, press L(2), Up, Down, R, B, A to unlock all Group 3 multi-player characters. If you entered the code correctly, you will hear a sound.

Group 2 Multi-player Characters

When "Press Start" appears at the opening screen, press B, A(2), R, L to unlock all Group 2 multi-player characters. If you entered the code correctly, you will hear a sound.

Group 1 Multi-player Characters

When "Press Start" appears at the opening screen, press A, L, R, Left, B, Down, Up to unlock all Group 1 multi-player characters. If you entered the code correctly, you will hear a sound.

Freeze Thrower With Infinite Ammunition

When "Press Start" appears at the opening screen, press Down, Up, A, L, R, Z. If you entered the code correctly, you will hear a sound.

Rifle With Infinite Ammunition

When "Press Start" appears at the opening screen, press C-Up, C-Down, C-Left, C- Right, L, R. If you entered the code correctly, you will hear a sound.

All Weapons

When "Press Start" appears at the opening screen, press Down, A, Up, L, Z, R, C- Up, C-Down, B, C-Left. If you entered the code correctly, you will hear a sound.

Debug Mode

When "Press Start" appears at the opening screen, press C-Up, Up, C-Left, 
Right, C-Down, Down, C-Right, R, A, B. If you entered the code correctly, you will 
hear a sound. The "Cheats Menu" will be available but will have no cheats active 
(unless they were previously activated or earned). Once you start or load a 
game/level, text will appear in the upper/left hand corner of the screen. Use 
controller two to control the debug options. Press Start to cycle through the 
various lists of options. Use the buttons noted below to change certain values. 
Note: Debug mode does not save on the memory pak like the other cheats.

SFX

L or R: FX down/up
Left or Right: FX down/up by 10
B: First person view
A: Third person view
Z: Play SFX

Level Warp

L or R: Level down/up
B: Skip level
Z: Advance to selected level

Midi

L or R: Song down/up
A: Play song
B: Stop song 
Global Palette
B or A: Red down/up
C-Left or C-Down: Green down/up
C-Up or C-Right: Blue down/up

Cheat

Z: All weapons
L: All items
R: All keys
A: Invincibility 
AI Debug Values
B or A: GVAR 1 down/up
C-Left or C-Down: GVAR 2 down/up
C-Up or C-Right: GVAR 3 down/up

Fog*

B or A: Red down/up
C-Left or C-Down: Green down/up
C-Up or C-Right: Blue down/up
Left or Right: NR down/up
L or R: FR down/up

Sky Top*

B or A: Red down/up
C-Left or C-Down: Green down/up
C-Up or C-Right: Blue down/up

Sky Bottom*

B or A: Red down/up
C-Left or C-Down: Green down/up
C-Up or C-Right: Blue down/up

Clouds 1*

B or A: Red down/up
C-Left or C-Down: Green down/up
C-Up or C-Right: Blue down/up
L or R: HT down/up
Down or Up: AN down/up
Left or Right: SP down/up

Clouds 2*

B or A: Red down/up
C-Left or C-Down: Green down/up
C-Up or C-Right: Blue down/up
L or R: HT down/up
Down or Up: AN down/up
Left or Right: SP down/up

Player

L or R: DN Down/Up (changes player's character)

GFX

(Values cannot be changed)

AI

A: AI 0/1 (set to 1 to stop enemies)
L: Difficulty 0/1/2
R: Auto aim 0/1

Alpha Palette

B or A: R0 down/up
C-Left or C-Down: G0 down/up
C-Up or C-Right: B0 down/up
L or R: R1 down/up
Left or Right: G1 down/up
Down or Up: B1 down/up 

Weather Cheat works the same way but only has the options noted with an *

 
 

Hints, Secrets, Glitches & Easter Eggs

 

Co-op (with Debug)

Put in debug then go into a multiplayer game, use the 3rd controller and choose a level, you will be able to use a two player adventure!

Play Solo Mode Levels In Multiplayer

Note: must have 3 controlers. First enter the debug mode cheat at the title screen. Next enter multiplayer mode with two players playing only. The third controler is used for the debug menu. Now, with the third controller on the debug menu, go to level warp and select a solo player level. These levels will have the enenies on them. While in these stages, debug mode will only work with the first player, but the second player will always have infinite health.

Refill Health

Destroy a fire hydrant, or another water source. Then, stand in the water and hold A to slowly restore health. Alternatively, stand in front of a toilet or urinal and press A.

Going Down Level

Collect all the time machine pieces before reaching "The Rack" level. Then a second exit portal will appear in the room just off where the first is located. Use it to reach the "Going Down" (Titanic) level.

Wetworld Level

Play through the "Nuclear Winter" level until reaching the rail tracks leading to the communicator. Then, power up and drop off onto the roof below where a medi- kit can be seen. Jump off this roof into the water (which is only on one side). Swim to a floating platform, where the level exit will appear.

Maximum Gamma Ammunition

Rescue all babes in level 21, "Alien Mothership", to unlock the cheat option for maximum gamma ammunition.

Maximum Freezer Ammunition

Kill all opponents in level 20, "The Brothers Nukem", to unlock the cheat option for maximum freezer ammunition.

Maximum Sniper Ammunition

Rescue all babes in the "Going Down" secret level to unlock the cheat option for maximum sniper ammunition.

Maximum Volt C. Ammunition

Obtain all secrets in level 17, "The Rack", to unlock the cheat option for maximum Volt C. ammunition.

Maximum Gatling Gun Ammunition

Kill all opponents in level 16, "Hydrogen Bomb", to unlock the cheat option for maximum gatling gun ammunition.

Maximum SMG Ammunition

Obtain all secrets in level 15, "Dawn Of The Duke", to unlock the cheat option for maximum SMG ammunition.

Maximum Sawn-off Shotgun Ammunition

Kill all opponents in level 13, "Whitechapel Killings", to unlock the cheat option for maximum sawn-off shotgun ammunition.

Maximum Revolver Ammunition

Kill all opponents in level 12, "Probing The Depths", to unlock the cheat option for maximum revolver ammunition.

Maximum Rifle Ammunition

Rescue all babes in level 11, "Ft. Roswell", to unlock the cheat option for maximum rifle ammunition.

Maximum Shotgun Ammunition

Rescue all babes in level 10, "Up Ship Creek", to unlock the cheat option for maximum shotgun ammunition.

Maximum Blaster Ammunition

Kill all opponents in level 9, "Jailbreak", to unlock the cheat option for maximum blaster ammunition.

Bonus Multi-player Characters

Successfully complete any level and save the game to unlock one additional character in multi-player mode.

Extreme Mode

Successfully complete the game with all babes rescued and all opponents killed to unlock Extreme mode, which allows the game to be played at a higher difficulty setting.

Zoom In On Sniper Rifle

You can zoom in by using top C.

 
 

FAQs, Guides, and Walkthroughs

 

The Boss Guide

Last updated: May 23, 2003 by trigger happy idiot

Strategy Guide

Last updated: January 12, 2001 by Tom Freeland

 
 
 

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