This game is also available on PC.
CONCEPT ARTS: Complete the game once in any difficulty
DEVELOPMENT TIMELINE: Complete the game once in any difficulty
Duke 3D Freeze Ray: Complete the game
DUKE SOUND BOARD: Complete the game once in any difficulty
Grayscale Mode: Complete the game
Head Scale: Complete the game
Infinite Ammo: Complete the game
Instagib: Complete the game
Invincibility: Complete the game
Mirror Mode: Complete the game
MOVIES: Complete the game once in any difficulty
SCREENSHOTS: Complete the game once in any difficulty
TRIPTYCH OFFICE PHOTOS: Complete the game once in any difficulty