Duke Nukem: Zero Hour Cheats
for Nintendo 64

Character set 4

Press B (x3), R, Left, A 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.)

Big gun mode

Slay all opponents in Level 3: Nuclear Winter.

Extreme mode

Successfully complete the game with all babes rescued and all opponents killed.

Character set 2

Press B, A (x2), R, L when "Press Start" appears at the opening screen. (A tone confirms correct entry.)

Action Nuk'em mode

Press Down (x2), A, Z (x2), Left, A when "Press Start" appears at the opening screen. (A tone confirms correct entry.)

Alternately, successfully complete the game.

Character set 1

Press A, L, R, Left, B, Down, Up when "Press Start" appears at the opening screen. (A tone confirms correct entry.)

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.

Big head mode

Rescue all babes in Level 2: Liberty or Death.

High speed zombies

Rescue all babes in Level 8: Dry Town.

Ice skin

Rescue all babes in Level 5: Fallout.

Additional characters in multi-player mode

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

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.

Maximum freezer ammunition

Slay all opponents in Level 20: The Brothers Nukem.

Maximum gamma ammunition

Rescue all babes in Level 21: Alien Mothership.

Maximum sniper ammunition

Rescue all babes in the secret level, "Going Down".

Maximum sawn-off shotgun ammunition

Slay all opponents in Level 13: White Chapel Killings.

Maximum SMG ammunition

Obtain all secrets in Level 15: Dawn of the Duke.

Maximum gattling gun ammunition

Slay all opponents in Level 16: Hydrogen Bomb.

Maximum Volt-C ammunition

Obtain all secrets in Level 17: The Rack.

Character set 6

Press Up, Down, B, A (x2), Left when "Press Start" appears at the opening screen. (A tone confirms correct entry.)

Flat shade map

Obtain all secrets in the secret level, "Wetworld".

Weather

Obtain all secrets in Level 6: Under Siege.

Maximum blaster ammunition

Slay all opponents in Level 9: Jailbreak.

Maximum shotgun ammunition

Rescue all babes in Level 10: Up Ship Creek.

Maximum rifle ammunition

Rescue all babes in Level 11: Ft. Roswell.

Maximum revolver ammunition

Rescue all babes and obtain all secrets in Level 12: Probing The Depths.

First person perspective

Press Down, Up, L, B, Z, Left, C-Up, C-Right, C-Left, Z 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.)

Character set 5

Press Right, B, Left, L, A, Z when "Press Start" appears at the opening screen. (A tone confirms correct entry.)