Episodes
- S3 E1 - Win, Lose, or Kaboom Part 1July 8, 200428minA strange stone with alien hieroglyphics on it falls in Retroville and Jimmy and his friends solve the riddle inside. Jimmy, Carl, Sheen, Cindy, Libby and Bolbie compete in an intergalactic game.This video is currently unavailable
- S3 E2 - Win, Lose, or Kaboom Part 2July 8, 200424minA strange stone with alien hieroglyphics on it falls in Retroville and Jimmy and his friends solve the riddle inside. Jimmy, Carl, Sheen, Cindy, Libby and Bolbie compete in an intergalactic game.This video is currently unavailable
- S3 E3 - Win, Lose, or Kaboom Part 3July 8, 200425minA strange stone with alien hieroglyphics on it falls in Retroville and Jimmy and his friends solve the riddle inside. Jimmy, Carl, Sheen, Cindy, Libby and Bolbie compete in an intergalactic game.This video is currently unavailable
- S3 E4 - The Tomorrow BoysDecember 4, 200523minJimmy and his friends travel to the future and discover that Libby will become an evil dictator who dominates the world. Jimmy will have to stop this from happening.This video is currently unavailable
- S3 E5 - FundemoniumJanuary 5, 200523minHugh creates a great toy that he hopes will be the best in the world. But it all goes wrong when Nanobots get hold of the toy and start causing destruction in the city.This video is currently unavailable
- S3 E6 - Lights,Camera,Danger!January 5, 200523minJimmy writes a script for a movie and is chosen by a Hollywood director to shoot it. But what he doesn't know is that the supposed movie is a plan by Professor Calamites to destroy Jimmy.This video is currently unavailable
- S3 E7 - Who's your Mommy?/Clash of the CousinsMay 1, 200524minJimmy, Carl and Sheen travel to an unknown planet and upon their return discover that Carl is pregnant by an alien / Jimmy discovers that there is an evil genius in his family.This video is currently unavailable
- S3 E8 - StrandedMay 2, 200523minJimmy and Cindy argue about whether or not the equator line can be seen. In their attempt to find out, they travel in the Neutro-slider, but fall into the ocean and become stranded on an island.This video is currently unavailable
- S3 E9 - Jimmy Goes to CollegeMay 3, 200523minJimmy's grades are so high, that he is chosen by the principal of a large university to become his new star student. Jimmy agrees and now goes to college, but gets a new rival.This video is currently unavailable
- S3 E10 - Incredible Shrinking TownMay 4, 200523minWhen the entire population of Retroville is accidentally hit by Jimmy's Shrink Ray, the Space Bandits kidnap everyone to sell throughout the galaxy as living dolls.This video is currently unavailable
- S3 E11 - Crouching Jimmy Hidden SheenMay 8, 200523minWhen Libby is captured by some evil ninjas, Sheen is the only one who can rescue her. But first he needs the help of his friend Jimmy Neutron to learn kung fu.This video is currently unavailable
- S3 E12 - One Of Us/Vanishing ActOctober 13, 200523minA television show turns the citizens of Retroville into joyous zombies. / Jimmy puts on a magic show using the great magician faulty metamorphosis box.This video is currently unavailable
- S3 E13 - The Troubles with ClonesMay 9, 200523minJimmy finds his evil clone again and tries to turn him good, but the clone has other plans.This video is currently unavailable
- S3 E14 - The Evil Beneath/Carl Wheezer Boy GeniusMay 6, 200524minJimmy and his friends try to solve the mystery of the disappearances in the Bahamas Quadrangle. /Carl meets a girl from Sweden, whom he tells is a genius and has a lab.This video is currently unavailable
- S3 E15 - The N MenMay 10, 200523minCarl, Sheen, Cindy and Libby gain super powers after being exposed to cosmic radiation. Jimmy just turns orange and appears to be completely depowered, resulting in everyone making fun of him.This video is currently unavailable
- S3 E16 - Who Framed Jimmy Neutron?/FlippyMay 11, 200523minWhen Carl and Sheen attempt to free him from his incarceration, the three boys end up on a chain gang together./ Hugh is taking up ventriloquism and he's making plans to show off his new skills.This video is currently unavailable
- S3 E17 - King Of MarsMay 15, 200523minEustace Styrch, Jimmy's greatest rival, is back to defeat the boy genius once and for all. This time he will try to find an energy source on Mars to take over the planet.This video is currently unavailable
- S3 E18 - El Magnífico/Best in ShowOctober 6, 200523minTo impress his son, Mr. Estevez pretends to be a superhero. / Godard is disqualified from the animal contest for not being a real dog.This video is currently unavailable
- S3 E19 - My Big Fat Spy WeddingOctober 6, 200523minJimmy's new secret mission is to follow Graceful Beauty. He soon finds out that she and Jet Fusion are getting married, but it's all just a plan by Graceful Beauty to get rid of Jimmy and send Jet Fusion to prison.This video is currently unavailable
- S3 E20 - How to Sink a Sub/Lady Sings the NewsOctober 13, 200524minJimmy hides a time displacement device in the teachers' transportation to the annual education convention. / Jimmy and his friends are all anchors in the school news program.This video is currently unavailable
- S3 E21 - The League of Villains Part 1December 14, 200523minKing Goobot has organized the most diabolical collection of bad guys to ever assemble on one space station. Their mission: Get Jimmy Neutron.This video is currently unavailable
- S3 E22 - The League of Villains Part 2December 14, 200524minKing Goobot has organized the most diabolical collection of bad guys to ever assemble on one space station. Their mission: Get Jimmy Neutron.This video is currently unavailable