Jimmy Neutron: Boy Genius — Game Boy Advance

Following Jimmy and Goddard

The manual describes a map of Retroville, level objectives and missing spaceship parts. Its tutorial introduces Jimmy’s movement and Goddard’s actions; the adventure combines places to explore with cartoon gadgets such as a jet pack and shrink ray. The mission is to rescue the parents taken by the Yokians.

Goddard gives the story a companion as well as a collection of mechanical possibilities. Imagine pausing at a new location to ask what the two might notice first: a route overhead, a part they still need or a clue to the next destination. The fun of the premise lies in turning a problem into another wonderfully unlikely invention.

Try a gadget repair desk

An original Toysit drawing activity: Open an imaginary repair counter for inventions with very particular jobs. Your first customer has lost a mitten on a storybook moon. Draw a gadget that could find it, using three invented parts—for example, a mitten-shaped antenna, a cloud wheel and a polite bell.

1. Label each part. Give it one clear job in the story. The antenna recognizes woolly shapes; the wheel rolls across clouds; the bell asks the moon where it last saw the mitten.
2. Invent a funny fault. Perhaps the antenna keeps finding socks, or the bell politely asks every crater for directions. Draw the first attempt as a two-panel comic.
3. Make a repair. A partner becomes the repair-desk adviser and suggests one changed part. Add it to the drawing and narrate a second attempt.

Finish with a receipt listing the invention’s name, the repair and the customer’s reaction. A “moon-mitten finder” might earn a thank-you drawing of two warm hands. On the next visit, keep the same three-part rule but change the job to finding a shy cloud or delivering a birthday song to a star.

Continuing a handheld adventure

The GBA game uses a password system, with a code shown after completing a level. Its separate multiplayer choices include a platform contest and a spaceship race for up to four linked players. These modes belong to the original handheld setup described in the booklet.

The historical record

Original Toysit coverage

The complete earlier product account and commentary are preserved below as historical coverage.

Based on the Nickelodeon movie of the same name, Jimmy Neutron: Boy Genius follows the adventures of a whiz kid and his robot dog, Goddard.

Jimmy Neutron: Boy Genius tells the story of a 10-year-old boy who, along with his robot dog, Goddard, battles evil, rescues his parents from aliens, saves Earth, and still makes it home in time for supper. The game features tons of techno gadgets, including a laser gun, shrink ray, asthma spray, and missiles. There are multiplayer character abilities for Jimmy, Goddard, Carl, Nick, Dad, Cindy, and Ultra Lord. Areas include Retroville, a meteor storm, the Yokian moon, and a Yokian chase through space.

Jimmy Neutron, the boy genius with an iconic, sky-high hairstyle, has long been a popular character due to his blend of intellect, adventurous spirit, and relatable pre-teen challenges. Star of "The Adventures of Jimmy Neutron: Boy Genius," an animated television series that originally aired on Nickelodeon, Jimmy embodies the childhood dream of having the freedom and ability to invent incredible gadgets and solve complex problems. The show's plotlines often revolve around Jimmy using his brainpower to get out of precarious situations, making science and innovation appear cool and accessible. In addition, the character balances his genius-level IQ with typical kid issues like friendship, family dynamics, and school, making him relatable to young audiences. The colorful, imaginative settings and zany supporting characters add further appeal to the series. Over the years, Jimmy Neutron has also been a part of video games, movies, and various merchandise, cementing his place in popular children's media.

Sources and editorial notes

THQ’s original GBA booklet, AGB-AJNE-USA, was reviewed across all 40 scanned pages, including diagrams. It confirms platform and race multiplayer through a Game Boy Advance Game Link cable, with a system and game cartridge for each player; specific abilities for Jimmy’s friends in the older account were not established. The earlier gadget description remains historical cartoon fiction. The paper activity is original editorial play; no physical testing or real-device instructions are implied.

• Original Toysit image — Existing same-site image reviewed and retained unchanged.
• THQ Jimmy Neutron: Boy Genius GBA instruction booklet — Original AGB-AJNE-USA booklet; all 40 PDF pages visually reviewed. Printed pages 2–16 cover the solo adventure, 18–26 linked multiplayer and 27–28 passwords. Character-specific multiplayer abilities in the earlier account remain unconfirmed.
• Original Toysit coverage — Complete historical account retained, including its original claims and wording.

Images and descriptions are retained as historical material. How Toysit covers toys.

Created for Toysit by Tabbloza — the artwork in our header.