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.

Unlock Cheats
When the press Start appears put in C-Left, Left, Up, C-Right, R, R, C-Down, L, C-Up, Up, Right, C-Right, Start

Working Claw-12 code
On the press start screen, press B, Z, Z, A, Z, L. You will hear a horse neigh and you will now be able to get the Claw-12 Shotgun and unlimited ammo for it.

Wetworld Level
To get 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.

Refill Energy
After blowing up a fire hydrant or toilet you can stand in the water and tap B to restore energy

Cheat Menu
To access the cheat menu. First beat the game on normal and after the credits are finished you will have the cheat menu and the cheats first person and action duke.

Get 1st Person View
At the opening screen when Press Start appears press Down, Up, L, B, Z, Left, C-Up, C-Right, C-Left, Z

Get Shotgun and Unlim Ammo
At the opening screen when Press Start appears press Up, Down, Left, Right, L, R

Get Rifle and Unlim Ammo
At the opening screen when Press Start appears press C-Up, C-Down, C-Left, C-Right, L, R

Get Freeze Thrower and Unlim Ammo
At the opening screen when Press Start appears press Down, Up, A, L, R, Z

Get Multiplayer Character Sets
Put in these codes at the Press Start on the opening screen

# Code
1 A, L, R, Left, B, Down, Up
2 B, A, A, R, L
3 L, L, Up, Down, R, B, A
4 B, B, B, R, Left, A
5 Right, B, Left,L, A, Z
6 Up, Down, B, A, A, Left

All Guns & Infinite Ammo
At the main menu press A, B, A, C-Up, C-Down, L, 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.

Get Extreme Mode
Finish the game with all opponents killed and all babes rescued to get extreme mode which is a harder difficulty

30.30 rifle with unlimited ammo
t the start when the toxic sign comes up hit C-up,C-down,C-left,C-right,L and then R. If done correctly you will hear a horse noise.

Action Nuk'em Mode
At the "press start" screen, enter Down Down,A,Z,Z,Left,A. This mode allowes Duke to kill an opponent with one shot.

Easy Skin Select
Type these in at the "press start" screen.You will hear a horse neigh if done correctly. Left-C,R,Left D-pad,Up D-pad,Down D-pad,B,A,Z.

Every Cheat (PAL Version ONLY!!)

Here is the cheats for the 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, R

How To Get All Of The Cheats

AS=all secrets
AK=all kills
AB=all babes

1: Mean Streets:cant get a cheat here
2: Liberty or Death: Big Head Mode =AB
3: Nuclear Winter: Big gun mode =AK
4: Wetworld (secret): Flat shade map=AS
5: Fallout: Ice Skin =AB
6: Under Siege: Weather =AS
7: Boss Hog: cant get a cheat here
8: Dry Town: High Speed Zombies=AB
9: Jailbreak: Max Ammo Blaster=AK
10: Up Ship Creek: Max Ammo Shotgun=AB
11: Ft. Roswell: Max Ammo Rifle=AB
12: Probing the Depths: Max Ammo Revolver=AK
13: Cyborg Scorpion:cant get a cheat here
14: Whitechapel Killings:Max Ammo Sawn off=AK
15: Dawn of the Duke: Max Ammo SMG =AS
16: Hydrogen Bomb: Max Ammo Gatling=AK
17: The Rack: Max Ammo Volt C.=AS
18: Going Down(secret): Max Ammo Sniper=AB
19: Brainstorm:cant get a cheat here
20: The Brothers Nukem: Max Ammo - Freezer=AK
21: Alien Mothership: Max Ammo- Gamma=AB
23: Zero Hour: cant get a cheat here