Home > Gamecube Cheats > Jimmy Neutron Boy Genius - Attack of the Twonkie
Jimmy Neutron Boy Genius - Attack of the Twonkie - Game cheats, tips and tricks for Gamecube
Extra challenges
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Finish retroland level.
Extra level
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Finish the game.
Inventions
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To tell if you can make a invention, there will be a box on the top right of the screen.
Jump Higher
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Run around in circles and jump. You will jump higher and in a circle.