Duke Nukem: Zero Hour Cheats - Nintendo 64

cheat description		size
GAMESHARK CODES Nov. 29, 2006		2KB
GAMESHARK CODES Nov. 25, 2005		1KB

Debug mode
Press [C-Up], [Up], [C-Left], [Right], [C-Down], [Down], [C-Right], [R], [A], [B] when "Press Start" appears at the opening screen. A sound will confirm correct code entry. Use controller two to select the debug options. Press [Start] to cycle through the options, such as "Cheats", "Level Select", and more.

When you enter the code on the title screen and hear the horse, the Cheats Menu will be available but will have no cheats active (unless you 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. Pressing [Start] cycles 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 *

Multi-player debug mode
Enable the "Debug mode" code as usual, then start a two or three player multi-player match. You can use the unused controller to control the debug menu. The best use for this is to use the warp to play the regular game with multiple players. You can complete the game as normal or fight each other. When you die, you will just reappear because you are in a Dukematch.

First person view
Press [Down], [Up], [L], [B], [Z], [Left], [C-Up], [C-Right], [C-Left], [Z] when "Press Start" appears at the opening screen. A sound will confirm correct code entry.

All weapons
Press [Down], [A], [Up], [L], [Z], [R], [C-Up], [C-Down], [B], [C-Left]

Freeze Thrower and unlimited ammunition
Press [Down], [Up], [A], [L], [R], [Z] when "Press Start" appears at the opening screen. A sound will confirm correct code entry.

Rifle and unlimited ammunition
Press [C-Up], [C-Down], [C-Left], [C-Right], [L], [R] when "Press Start" appears at the opening screen. A sound will confirm correct code entry.

Multi-player character set 1
Press [A], [L], [R], [Left], [B], [Down], [Up] when "Press Start" appears at the opening screen. A sound will confirm correct code entry.

Multi-player character set 2
Press [B], [A]x2, [R], [L] when "Press Start" appears at the opening screen. A sound will confirm correct code entry.

Multi-player character set 3
Press [L]x2, [Up], [Down], [R], [B], [A] when "Press Start" appears at the opening screen. A sound will confirm correct code entry.

Multi-player character set 4
Press [B]x3, [R], [Left], [A] when "Press Start" appears at the opening screen. A sound will confirm correct code entry.

Multi-player character set 5
Press [Right], [B], [Left], [L], [A], [Z] when "Press Start" appears at the opening screen. A sound will confirm correct code entry.

Multi-player characters set 6
Press [Up], [Down], [B], [A]x2, [Left] when "Press Start" appears at the opening screen. A sound will confirm correct code entry.

High speed zombies
Press [A]x2, [Z], [A], [R], [C-Down], [B] when "Press Start" appears at the opening screen. A sound will confirm correct code entry. Alternately, rescue all babes in level 8, "Dry Town", to unlock the cheat option for high speed zombies.

Skin select
Press [C-Left], [R], [Left], [Up], [Down], [B], [A], [Z] when "Press Start" appears at the opening screen. A sound will confirm correct code entry. Go to multi-player mode and select a character. Press [Start], select "Quit Game" then choose "Yes". Start a one player game to play as the person that was previously selected.

Action Nuk'em mode
Press [Down]x2, [A], [Z]x2, [Left], [A] when "Press Start" appears at the opening screen. A sound will confirm correct code entry. Alternately, successfully complete the game. This mode allows Duke to kill opponents with one shot.

Big head mode
Press [B], [Up], [Down]x2, [A], [Z], [A], [Right] when "Press Start" appears at the opening screen. A sound will confirm correct code entry. Alternately, rescue all babes in level 2, "Liberty Or Death", to unlock the cheat option for big head mode.

Big gun mode
Press [C-Up], [C-Left], [Z], [B], [L], [Z], [A] when "Press Start" appears at the opening screen. A sound will confirm correct code entry. Alternately, kill all opponents in level 3, "Nuclear Winter", to unlock the cheat option for big gun mode.

Flat shade map
Press [Down], [Up], [Left]x2, [A], [Right], [Down] when "Press Start" appears at the opening screen. A sound will confirm correct code entry. Alternately, obtain all secrets in the secret "Wetworld", level to unlock the cheat option for flat shade map.

Ice skin
Press [B], [Z], [Up], [L], [A], [C-Right], [A] when "Press Start" appears at the opening screen. A sound will confirm correct code entry. Alternately, rescue all babes in level 5, "Fallout", to unlock the cheat option for ice skin.

Weather
Press [Z], [A], [L], [B], [Down], [Up], [R] when "Press Start" appears at the opening screen. A sound will confirm correct code entry. Alternately, obtain all secrets in level 6, "Under Siege", to unlock the cheat option for weather.

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

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

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

Maximum revolver ammunition
Rescue all babes/obtain all secrets in level 12, "Probing The Depths", to unlock the cheat option for maximum revolver 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 SMG ammunition
Obtain all secrets in level 15, "Dawn Of The Duke", to unlock the cheat option for maximum SMG ammunition.

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

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

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

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

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

More multi-player characters
Complete any level and save the game to unlock one additional character in multi-player mode.

Extreme mode
Successfully complete each level with all babes rescued and all enemies killed.

Health refill
Destroy a fire hydrant, toiler, water pump, or another water source. Run up, stand in the water and repeatedly press [B] to slowly restore Duke's health until it reaches 100. Also, if you see a concentrated area of purple objects appearing from the ground, stand on it to refill your health.

Wetworld level
Play through the Nuclear Winter level until reaching the rail tracks leading to the communicator. 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.

At the end of the Nuclear Winter level, when you cross the bridge to the satellite receiver fall to the right on the bridge into some water. Note: If you fall to the left side you will fall to the street and kill yourself. Turn the corner in the water and jump into the space ship.

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

Collect all of the time machine parts at the end of The Rack level. Instead of going through the door, keep going straight until you reach a room with the time machine, then jump in.

Easy Western period Boss kill
Get the sniper rifle before facing the giant scorpion at last stage of the western time period. Go out to the entrance when you can barely or see half of the scorpion. Pull out the sniper rifle, aim at its body, and start firing.

Glitch: Talking guns
On Level 2, The Streets, collect a powerful gun such as the grenade launcher, or something that destroys a large area. Enter the Dukeburger Restaurant. Equip your powerful weapon and if you want and kill the army man on the landing of the steps. Move into the corner of the landing very slowly and look into the top room until both army men are in your view. Shoot a few grenades at the army men until both are dead -- pick up their guns. Walk into the room -- as if the army men were still there, Duke will start to talk to them, and the guns will respond to Duke. Note: This also creates a hole in the wall that can be entered to reach a hidden Babe.