Duke Nukem: Manhattan Project

Thunder gun
Successfully complete the game on all difficulties to unlock the Thunder gun, which can kill everything in sight. When entering a loading screen or room, quickly tap [Fire]. The gun will fire in all directions, and you will get a large health boost and all enemies will be killed.
Wozma
In Episode 8: Part 3 at Mech-Nukem's left arm (the incomplete one), press [Up] near the path in front of it. You will enter a secret area containing Wozma, the secret Boss. During this time you will have unlimited ammunition.
Avatar Awards
Successfully complete the indicated task to unlock the corresponding Avatar Award:
Jetpack: Successfully complete the game.
T-shirt: Save the babe found in Level 1.
Achievements
Accomplish the indicated achievement to get the corresponding number of Gamerscore points:
Deworming the Big Apple (20 points): Finish "Rooftop Rebellion".
Confucius Say...Die (20 points): Finish "Chinatown Chiller".
Max Pain on the A-Train (20 points): Finish "Metro Mayhem".
I Love the Smell of Sewer Scum (20 points): Finish "Unholy Underworld".
Worker Safety, Last (20 points): Finish "Fearsome Factory".
This Ain't the Love Boat (20 points): Finish "Tanker Trouble".
Going Down Faster Than Enron (20 points): Finish "Deviant Drilling".
Space, the Final Frontier (20 points): Finish "Orbital Oblivion".
My Boots Are Made For Stompin' (10 points): Stomp on 20 enemies.
Pig Out (10 points): Kill 75 enemies.
Glow Like Dr. Manhattan (10 points): Collect 120 Nuke symbols.
New York Minute (10 points): Finish the first level in under 3 minutes.


Read more: http://www.cheatcc.com/xbox360/dukenukemmanhattanprojectcheatscodes.html#ixzz1Ph0gZvOS
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