Duke Nukem: Zero Hour Cheats For Nintendo 64

  1. Debug Mode

    This code will enable you to do all kinds of codes such as invincibility and all weapons. At the Press Start Screen, press C-Up, Up, C-Left, Right, C-Down, Down, C-Right, R, A, B. If you entered the code correctly, you'll hear a horse neigh. When you start a normal game a Debug menu will show up at the top-left corner of the screen. Press Start on controller 2 to cycle through the Debug menu's. Press the following buttons on controller 2 to activate these cheats at the appropriate menu:


    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

    Contributed by: unodos12345 

  2. Regain Health

    During gameplay, find a fire hydrant or toilet. Destroy it, and stand next to the flowing water coming from its remains. Press the 'B' button, and your health will slowly regenerate, and go back up.

    Contributed by: Vegetaman 

  3. Get all of the following to unlock weapons, other interesting features & a secret level.

    Get maximum amount of the following to unlock the cheats that are descreibed in the following.

    Code Effect
    Get all kills on the Jail Break Level. Unlimited M-80 Blaster
    Nab all babes on the Liberty or Death Level. Big Head Mode
    Kill every enemy on the Nuclear Winter level. Big Gun Mode
    Kill everybody on the Dry Town level. Fast Zombies
    Get all Secrets on the Wetworld level. Flat Shading
    Kill everything on the Whitechapel Killings level. Unlimited Sawed-Off Shotgun
    Save all the babes on the Ailen Mother level. Unlimited Gamma Cannon
    Get all kills on Under Seige. Weather
    Complete the Zero Hour level. First-Person & Action Nukem Mode
    Get 100 % overall rating on every level. Select Skin
    Get all of the babes on the Up Ship Creek level. Unlimited Claw-12 Shotgun
    Get all of the babes on Going Down. Unlimited Sniper Rifle
    Kill every enemy on The Brothers Nukem level. Unlimited Freezethrower
    Get all of the babes in the Fallout level. Ice skins (enemies, Duke & breakable objects).
    Get all of the babes in the Fort Roswell. Unlimited Lever Action .30-30 Rifle
    Get all kills on Hydrogen Bomb level *[in order to use, you have to start a new game.] Unlimited Gattling Gun
    Get all of the secrets in The Rack level. Unlimited Volt Cannon
    Get all secrets on Dawn of the Duke. Unlimited MP-10 SMG
    Get all of the Time Machine Parts in the levels (except boss levels & from The Rack level to the last boss level). Unlock Going Down Secret Level

    Contributed by: Duke_Plisskin 

  4. Unlock Wetworld

    In the third level, Nuclear Winter, you can unlock the hidden level, Wetworld. At the end of the level as you are crossing the raised train tracks, to get to the signal transmtter, if you look down while moving across the tracks, you'll see a medkit on one of the roofs. Jump onto the roof, then jump into the water and swim until you come to the platform and end-level icon.

    Contributed by: Reaper 

  5. Unlock Going Down

    To unlock the hidden level, Going Down, obtain all of the time machine pieces before reaching the level, The Rack. After using the cyborg alien's head to unlock the door near the end of the level, there should be a second portal that has a fully built time mahcine in it, and this room should be adjacent to the first portal room. It is possible to replay this level to unlock the hidden level if time machine pieces are missed during a first play-through of the game.

    Contributed by: Reaper 

  6. Codes

    On the title screen, enter the following:

    Code Effect
    Down, Up, L, Z, Top-C, Right-C, Left-C, and Z First Person View
    Down, Down, A, Z, Z, Left, A Action Nukem Mode
    L,L,UP,DOWN,R,B,A Posh Duke,Battle Dress Duke,& Dogtag Duke
    RIGHT,B,LEFT,L,A,Z Evil Duke,Custer,Ripper,& X-Terminator
    B,B,B,R,LEFT,A Marshall,Sheriff,Squaw,Survivor,& Kimberly Strokes
    UP,DOWN,B,A,A,LEFT Marine & Sergeant
    B,A,A,R,L Pig Cop,Riot Pig,Road Hog,War Pig,Cowboy Grunt,Savage Grunt,Soldier grunt,& Capitalist Pig
    A,L,R,LEFT,B,DOWN,UP Enforcer,Enforcer Captain & Battle Enforcer
    d-up, d-down, d-left, d-right,L and R Shotgun With Unlimited Ammo
    d-down, d-up, A, L, R and Z Odd Gun with Unlimited Ammo
    top C, bottom C, left C, right C, L, and R Rifle with Unlimited Ammo
    Down, A, Up, L, Z, R, Top-C, Bottom-C, B, Left-C All weapons
    Down, Up, A, L, R, Z Freeze Thrower and unlimited ammo
    A, A, Z, A, R, Bottom-C, B High speed zombies
    Left-C, R, Left, Up, Down, B, A, Z Skin select
    B, Up, Down, Down, A, Z, A, Right Big head mode
    Top-C, Left-C, Z, B, L, Z, A Big gun mode
    Down, Up, Left, Left, A, Right, Down Flat shade map
    B, Z, Up, L, A, Right-C, A Ice skin
    Z, A, L, B, Down, Up, R Weather

    Contributed by: ElementalKnight 

Walkthroughs & FAQs

Type Name File Size
FAQ/Walkthrough FAQ/Walkthrough by TheGreatElBobo 52K
FAQ/Walkthrough FAQ/Walkthrough by TheGreatElBobo 39K
FAQ/Walkthrough FAQ/Walkthrough by TFreeland 62K