Miss Fowl's class has a candy-selling contest, with the grand prize being a trip to Retroland! To beat Cindy in the contest, Jimmy invents a robot programmed to sell candy no matter what.

When the old tyrant of a hall monster leaves, Jimmy is picked as his replacement.

Jimmy creates a "get out of school sick" patch.

Sheen and Carl convince Jimmy to throw a party when his parents go out to watch Ducks. But when Hugh and Judy come home early, how can Jimmy convince his guests to leave?

The mad Professor Finbarr Calamitous schemes to make Jimmy his "scientific slave."

Jimmy is hosting a sleepover with Carl and Sheen! To make it the best slumber party in history, Jimmy invents a machine to make perfect pillows for pillow fights, create made-to-order pizzas, and tell scream-your-head-off scary stories. But what happens if the invention is overloaded and the programs mix up?

The Father's Day talent show is a few days away so Jimmy invents a device that turns dorky Hugh into the coolest dad in Retroville.

Bored by a class documentary on mummies, Jimmy decides to take Carl, Sheen, Libby, and Cindy along with him to see the real deal.

Jimmy's determination to captain a winning baseball team leads him to rev up the equipment with Neutronic technology.

Jimmy is enlisted as a spy by the Big Top Secret Organization. His mission: find and rescue Agent X - who turns out to be Jimmy's movie hero, Jet Fusion.

In order to have the scariest Halloween costumes ever, Jimmy uses his latest invention to morph Carl and Sheen into a Vampire and a Werewolf.

Jimmy runs for class president against Sheen, Libby and Bolbi - the new kid.

Jimmy clones himself so he doesn't have to do chores.

Jimmy is desperate to get the starring role opposite dream girl Betty Quinlan in the school musical, "Macbeth in Space." But the only part he can land is the FX master backstage.

Jimmy must rescue Brobot's parents from the terrifying Junk Man, a galactic space scoundrel who plans to dismantle the robots and sell their parts to the highest bidder.

A strange meteor lands in Retroville, bearing a mysterious message in an alien language. When Jimmy is finally able to translate and answer the riddle, he, Cindy, Libby, Sheen, Carl, Bolbi, and Goddard are sucked into space - only to find that the message is an invitation to Intergalactic Showdown! Team Earth must learn to work together to win - or lose their home planet!

Famous film director Quintin Smithee is coming to Retroville to make his next big movie, and Jimmy, Cindy, Libby, Sheen and Carl all have starring roles.

King Goobot has organized the most diabolical collection of bad guys to ever assemble on one space station. Their mission: Get Jimmy Neutron.

Jimmy's new mission from the BTSO is to follow Beautiful Gorgeous. He takes the job and he discovers that she and Jet Fusion are getting married!

When the entire population of Retroville is accidentally hit by Jimmy's shrink ray, the Space Bandits abduct everyone with the nefarious plan of marketing and selling them throughout the galaxy as living dolls.

A new TV show turns everyone in Retroville into mindless and exceedingly cheerful zombies.

Carl's pen pal, Elke Elkberg from Sweden, is coming to Retroville to meet him, and Carl is in a panic.

Jimmy is framed for a break in at the Retroville Bank. When Carl and Sheen attempt to free him from his incarceration, the three boys end up on a chain gang together.

Goddard is disqualified from the Retroville Pet Show because he is not technically a real dog.