Completion Bonuses:
Complete the game under Normal difficulty or higher.to unlock the following cheat options:
Concept Arts
Development Timeline
Duke 3D Freeze Ray (freeze ray fires bouncing ice projectiles)
Duke Sound Board
Game Speed (adjust game speed)
Grayscale Mode (black and white graphics)
Head Scale (adjust head size of enemies and NPCs) – Easy difficulty or higher.
Infinite Ammo (cheat; self-explanatory)
Instagib (cheat; enemies killed with one shot and always gib)
Invincibility (cheat; no damage from bullets or explosions)
Mirror Mode (graphics are mirrored horizontally)
Movies
Screenshots
Triptych Office Photos
Duke Nukem’s Titty City (Strip Club) Door code:
After loading up the Chapter called “Duke Nukem’s Titty City”, go behind the Bar on that level to find a closed Door that requires a code to be opened. The Code is: 4768. Inside you’ll find a beer, which is part of the “Party Animal” achievement and a