Wolfenstein 3D – Gameboy Advance

Wolfenstein 3D - Platform: Gameboy Advance

Pause the game, then hold L + R and 
enter the codes.

God mode A, A, B, A, A, A, A, A 
Level skip A, B, B, A, A, A, A, A 
All weapons & keys A, B, A, A, B, B, B, A