Cheats, Codes, and Secrets
The following cheats, codes, and secrets are available for Adventures of Jimmy Neutron Boy Genius: Attack of the Twonkies on the Nintendo Gamecube video game console.
Successfully complete the Retroland level.
Bonus Jetpack race level
Successfully complete the game.
To tell if you can make a inventionre will be a box on the top right of the screen.
Hint: Jump higher
Run around in circles and jump. You will jump higher and in a circle.
More Hints and Tips
- Adventures of Jimmy Neutron Boy Genius: Attack of the Twonkies hints and tips.
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