CheatCodes.com has all the official Duke Nukem Advance GBA cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Wednesday May 22, 2013 for Duke Nukem Advance are shown below.
When you see an Octobrain far away, use the freeze gun. When the Octobrain is frozen, it will fall and smash into pieces. This method is very useful if you want to save your rockets or bullets.
Do not walk next to a wall and fire the freeze gun. You will freeze instead of the wall.
Do not walk next to a enemy and shrink him. You will shrink along with him.
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