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Duke Nukem Zero Hour

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-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. 

 

-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. 

 

-Cheat mode:

Press C-Left, Left, Up, Right-C, R, R, C-Down, L, C-Up, 

Up, Right, C-Right, Start at the "Press Start" screen 

to unlock all cheat options. 

 

-.30-.30 Rifle with infinite ammo:

At the press start screen press C-up, C-down, C-left, 

C-right, L, R. 

 

-Regain health:

When you shoot a fire hydrant in the game stand next 

to it and press the B button. This will replenish your 

health to 100. 

 

-Titanic Level:

To access the Titanic level "GOING DOWN" find all the 

time machine pieces before you get to "THE RACK" and 

a second exit portal should appear in the room just 

off the first. 

 

-Wetworld Level:

To access the "WETWORLD" level play through level 3 

'NUCLEAR WINTER' and when you reach the rail tracks 

leading to the communicator you have to power up drop 

off onto the roof below where you will see a medi kit.

Now jump off this roof into the water (which is only on 

1 side) and swim to a floating platform where you will 

see the level exit. 

 

-Aradius Level:

You have to beat the entire game without dying once. 

 

-All guns & infinite ammo:

At the main menu press A, B, A, C-Up, C-Down, Left, A 

 

-Play as X-Terminator:

Beat the final boss to unlock X-Terminator in multiplayer. 

 

-How to Find Secrets with a Gun:

If you have smg cheat or gatling cheat or if you have the 

gun. just point the gun at the wall and fire it. When you 

are firing the gun at the wall walk down when your 

bulletholes disapper that where there is there is a secret. 

 

-Get More Multiplayer Characters:

If you save your game after you finish a level you get 

some additional multiplayer characters. 

 

-FPS Mode and Action Nuk'em Mode:

When you beat the game you get these two modes. First 

Person Mode puts you in the perspective like in Duke 

Nukem 3D. Action Mode makes you have 1-hit kills. 

 

-Extreme Mode:

Beat every level getting all of the babes and killing all 

of the enemies and you get extreme mode. It is just 

a harder level of difficulty. 

 

-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. 

 

-Action Nuk'em mode:

When "Press Start" appears at the opening screen, press 

Down, Down, A, Z, Z, Left, A. This allows Duke to kill 

opponents with one shot. 

 

-Select Skin:

When "Press Start" appears at the opening screen, press 

C-Left, R, Left, Up, Down, B, A, Z. Go on as if you are 

starting a multiplayer game, and the character that the 

first player selects will replace Duke in single player 

mode. 

 

-Extra Group 1 multi-player characters:

When "Press Start" appears at the opening screen, press 

A, L, R, Left, B, Down, Up. 

 

-Extra Group 2 multi-player characters:

When "Press Start" appears at the opening screen, press 

B, A, A, R, L. 

 

-Extra Group 3 multi-player characters:

When "Press Start" appears at the opening screen, press 

L, L, Up, Down, R, B, A. 

 

-Extra Group 4 multi-player characters:

When "Press Start" appears at the opening screen, press 

B, B, B, R, Left, A. 

 

-Extra Group 5 multi-player characters:

When "Press Start" appears at the opening screen, press 

Right, B, Left, L, A, Z. 

 

-Extra Group 6 multi-player characters:

When "Press Start" appears at the opening screen, press 

Up, Down, B, A, A, Left. 

 

-Cheats codes, PAL version:

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

 

 

Unlock cheat options:

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>Big head mode:

Rescue all babes in the Liberty Or Death level. 

 

>Big gun mode:

Kill all opponents in the Nuclear Winter level. 

 

>Flat shade map:

Obtain all secrets in the secret Wetworld level. 

 

>Ice skin:

Rescue all babes in the Fallout level. 

 

>Weather:

Obtain all secrets in the Under Siege level. 

 

>High speed zombies:

Rescue all babes in the Dry Town level. 

 

>Maximum blaster ammunition:

Kill all opponents in the Jailbreak level. 

 

>Maximum shotgun ammunition:

Rescue all babes in the Up Ship Creek level. 

 

>Maximum rifle ammunition:

Rescue all babes in the Ft. Roswell level. 

 

>Maximum revolver ammunition:

Kill all opponents in the Probing The Depths level. 

 

>Maximum sawn-off shotgun ammunition:

Kill all opponents in the Whitechapel Killings level. 

 

>Maximum SMG ammunition:

Obtain all secrets in the Dawn Of The Duke level. 

 

>Maximum gatling gun ammunition:

Kill all opponents in the Hydrogen Bomb level. 

 

>Maximum Volt C. ammunition:

Obtain all secrets in the The Rack level. 

 

>Maximum sniper ammunition:

Rescue all babes in the secret Going Down level. 

 

>Maximum freezer ammunition:

Kill all opponents in the The Brothers Nukem level. 

 

>Maximum gamma ammunition:

Rescue all babes in the Alien Mothership level.