Duke Nukem: Zero Hour N64 Cheats

Additional characters in multi-player mode Complete any level and save the game to unlock an additional character in multi-player mode. Character set 1
Press A, L, R, Left, B, Down, Up when "Press Start" appears at the opening screen. (A tone confirms correct entry.) Character set 2
Press B, A (x2), R, L when "Press Start" appears at the opening screen. (A tone confirms correct entry.) Character set 3
Press L (x2), Up, Down, R, B, A when "Press Start" appears at the opening screen. (A tone confirms correct entry.) Character set 4
Press B (x3), R, Left, A when "Press Start" appears at the opening screen. (A tone confirms correct entry.) Character set 5
Press Right, B, Left, L, A, Z when "Press Start" appears at the opening screen. (A tone confirms correct entry.) Character set 6
Press Up, Down, B, A (x2), Left when "Press Start" appears at the opening screen. (A tone confirms correct entry.) Freeze thrower with unlimited ammunition
Press Down, Up, A, L, R, Z when "Press Start" appears at the opening screen. (A tone confirms correct entry.) Rifle with unlimited ammunition
Press C-Up, C-Down, C-Left, C-Right, L, R when "Press Start" appears at the opening screen. (A tone confirms correct entry.) Secret level: Going Down Obtain all of the time machine pieces before reaching the rack. A second portal should appear in a room adjacent to the first. Secret level: Wetworld
After powering up at the end of level 3: Nuclear Winter, jump onto the roof below. (You will see a Medkit there.)
From the roof, jump into the water and swim to the floating platform. 

Perform the following tasks to enable the respective cheats.

Big head mode 
Rescue all babes on Level 2: Liberty or Death Big gun mode 
Kill all opponents on Level 3: Nuclear Winter Flat shade map 
Find all secrets on Level 4: Wetworld Ice skin 
Rescue all babes on Level 5: Fallout Weather 
Find all secrets on Level 6: Under Seige High-speed zombies 
Rescue all babes on Level 8: Dry Town Max. blaster ammo 
Kill all opponents on Level 9: Jailbreak Max. shotgun ammo 
Rescue all babes on Level 10: Up Ship Creek Max. rifle ammo 
Rescue all babes on Level 11: Fort Roswell Max. revolver ammo 
Kill all opponents on Level 12: Probing the Depths Max. sawn-off shotgun ammo 
Kill all opponents on Level 13: White Chapel Killings Max. SMG ammo 
Find all secrets on Level 15: Dawn of the Duke Max. gatling gun ammo 
Kill all opponents on Level 16: Hydrogen BombMax. Volt C. ammo 
Find all secrets on Level 17: The RackMax. sniper ammo
Rescue all babes on Level 19: Going Down Max. freezer ammo
Kill all opponents on Level 20: The Brothers Nukem Max. gamma ammoRescue all babes on Level 21: Alien Mothership 

Extreme Mode:Beat every level, rescue all of the babes and kill all of the enemies to
access Extreme mode.

Action Nuk’em Mode:
Beat the game to unlock this mode, which allows one-shot kills.

First-person view:
At the opening screen, press Down, Up, L, B, Z, Left, C-Up, C-Right, C-Left,
Z. You’ll hear a sound to confirm.

Regain health:Shoot a fire hydrant or toilet, stand next to it and press A. You’ll slowly
regain health.

GameShark Codes

Requires 3.0 GameShark and Ram Expansion Pack Have Pistol	8111a6a80001
Infinite Ammo Pistol	8111a6aa0063
Infinite Ammo Pistol	8111a6b00000
Never Reload Pistol	8111a6b20000
Have Shotgun	8111a6d00001
Infinite Shotgun Shells 8111a6d20063
Infinite Shotgun Shells 8111a6d80000
Never Reload Shotgun	8111a6da0000
Have Machine Gun	8111a6f80001
Infinite Ammo	8111a6fa0063
Machine Gun
Infinite Ammo	8111a7000000
Machine Gun
Never Reload Machinegun 8111a7020000
Have Grenade Launcher	8111a7200001
Infinite Grenades	8111a7220063
Infinite Grenades	8111a7280000
Never Reload Grenade	8111a72a0000
Launcher x
Have Pipe Bomb	8111a7480001
Infinite Pipe Bombs	8111a74a0063
Infinite Pipe Bombs	8111a7500000
Never Rearm Pipe Bombs	8111a7520000
Have Dynamite	8111a7700001
Infinite Dynamite	8111a7720063
Infinite Dynamite	8111a7780000
Never Rearm Dynamite	8111a77a0000
Have Extra Weapon	8111a7980001
Infinite Ammo Extra	8111a79a0063
Weapon
Infinite Ammo Extra	8111a7a00000
Weapon
Never Reload Extra	8111a7a20000
Weapon
Have Machine Shotgun	8111a7c00001
Infinite Ammo Machine	8111a7c20063
Shotgun
Infinite Ammo Machine	8111a7c80000
Shotgun
Never Reload Machine	8111a7ca0000
Shotgun
Have Plasma Gun	8111a7e80001
Infinite Ammo	8111a7ea0063
Plasma Gun
Infinite Ammo	8111a7f00000
Plasma Gun 
Never Reload	8111a7f20000
Plasma Gun
Have Laser	8111a8100001
Infinite Ammo Laser	8111a8120063
Infinite Ammo Laser	8111a8180000
Never Reload Laser	8111a81a0000
Press L Button	d0117df40008
To Moon Jump
Press L Button	81117eecffff
To Moon Jump
Press L Button	d0117df40008
To Moon Jump
Press L Button	81117eeefc00
To Moon Jump 

 

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