Unlock Extra Options cheats for Duke Nukem Forever

Unlock Extra Options

When you complete the game on any difficulty setting you will unlock the following extra options for your next playthough (the options labeled 'CHEAT' will lock Achievements and Ego points.)

Duke 3D Freeze Ray:

Freeze ray will fire bouncing ice projectiles (SP only).

Game Speed:

Adjust game speed (SP only).

Grayscale Mode:

Draw the game in grayscale (SP only).

Head Scale:

Adjust head size of enemies and NPCs (SP only).

Infinite Ammo:

Never run out of ammo (SP only). CHEAT.

Instagib:

Enemies die in 1 shot and always gib (SP only). CHEAT.

Invincibility:

Take no damage from bullets or explosions (SP only). CHEAT.

Mirror Mode:

Draw the game mirrored horizontally (SP only).

More tricks, tips and cheats for this game are right here - Duke Nukem Forever cheats