List of ''The Adventures of Jimmy Neutron: Boy Genius'' episodes

Wanting to prove Cindy wrong, Jimmy brings Thomas Edison to the present, but is unable to take him back when Edison falls for Ms. Fowl.

The Neutrons become rich after Jimmy goes back in time to convince his dad to invest in McSpanky's burger joint.

Jimmy, Carl, Sheen, and Cindy go underwater in a submarine to look for treasure, only to find out it wasn't what they expected.

Carl is having a problem with his nightmares, so he convinces Jimmy to help him. However, Carl accidentally gets Jimmy stuck in his next dream and Jimmy has to find his way out.

Jimmy freezes Retroville on a hot day, sending the town into a second ice age. Later, he has to find a way to melt the large amounts of snow and ice.

Wanting to beat Cindy in a relay race at their elementary school, Jimmy invents super shoes that make him run faster than anyone else. After Cindy tricks him into losing a sure-win at the race, Jimmy, seeking revenge, uses advantage of his shoes' invisibility effect to play pranks on the students, leading to trouble when he turns into jelly.

Jimmy accidentally switches bodies with Carl's hamster.

Jimmy becomes hall monitor, but takes it too far when he arrests his friends after abusing his power.

Jimmy investigates the disappearance of Sheen's lost Ultra Lord action figure and uses science to solve it.

Jimmy, Carl, and Sheen are camping with Hugh, but end up in trouble with a bear.

Using Jimmy's newest invention, Sheen travels inside his favorite video game to meet his hero, Ultra Lord. But when he ends up on a challenging level, Jimmy and Carl manage to save him.

Jimmy invents a new sleep-over machine when Carl and Sheen come over for the night. Things take a scary twist, however, when Carl accidentally creates a pizza monster from tampering with the machine, and the three end up being chased, but are able to stop him with light. The pizza monster then wakes up and discovers that the whole event was a nightmare while he was sleeping.

Jimmy, Carl, Sheen, Cindy, and Libby travel to Egypt to find the ruins of the tomb of Queen Howsaboutaslapya, only to discover she's actually Libby's ancestor.

Feeling unappreciated around the house, Judy takes a week off at a spa, with Jimmy inventing a replacement robo-mother. Things go awry when the robo-mother goes out of control, but Judy manages to save her son.

To avoid his chores, Jimmy makes clones of himself, including an optimist, a pessimist, a tough-talker, a French romantic, a comedian, and an evildoer. However, the clones cause trouble in Retroville rather than doing his chores. After freezing the other clones and only one had escaped, the real Jimmy takes the blame and the citizens of Retroville, including Carl, Sheen and Cindy, become upset with him and even the mob chases Jimmy in retribution.

Jimmy and Carl are forbidden to see one another as their parents are fighting against each other.

Jimmy joins his school play, "MacBeth in Space" to spend more time with his crush, Betty Quinlan. However, he only makes the special effects and Nick is assigned the lead role. When Nick hurts himself skateboarding, Jimmy rushes to save the play and takes Nick's place as the lead role.

Jimmy attempts to rescue Brobot and his parents from the Junkman's ship.

Miss Fowl takes her students on a trip to a rodeo.

Jimmy's parents are on vacation for the week and Jimmy is left with Carl's family. Jimmy, thinking the Wheezer family is too nerdy, gives them super powers.

Jimmy visits a comet, and while harvesting dust from the comet's surface accidentally brings a small fluffy alien life-form back to Earth. Carl brings the alien, which he calls a "Twonkie", to class, and it produces multiple offspring. Everyone finds the Twonkies irresistibly adorable and adopts one. However, when the Twonkies hear music they morph into grotesque and vicious monsters. Jimmy and the citizens of Retroville must stop and capture the dangerous rampaging Twonkies and send them back to their comet before it leaves Earth's orbit.

After losing his job, in order to stay in Retroville, Hugh makes a fortune creating a brand of children's toys that Jimmy secretly modifies in his lab before his father presents the prototypes to the toy company. But the Nanobots trick Jimmy's father into releasing them and using them as batteries for one of his toys. Once inside the toy, the Nanobots plot to destroy Retroville.

After an argument between Jimmy and Cindy about the equator, the gang travels in Jimmy's hover car over there. Jimmy and Cindy fall out of the hover car and into the ocean while arguing and become stranded on a deserted island, where they seem to develop feelings for each other without the stress of their everyday lives in the way. Carl, Sheen, and Libby try to disable the autopilot and find their friends somewhere in the ocean.

After traveling into the future, Jimmy, Carl and Sheen find out Libby can be the future dictator of the world and now they must save Libby in the present.

Jimmy and his parents go to the Neutron's little family reunion to see Hugh's family. Apparently, someone is trying to destroy the family and Jimmy is blamed for destroying the stuff at the reunion. As it turns out, Baby Eddie is the one trying to ruin the reunion and Jimmy must prove his innocence and have his name cleared for something that he didn't do to save the reunion with the help of his friends, Carl and Sheen and his uncle and Hugh's twin-brother, Gomer.

Jimmy tries to prevent Jet Fusion from marrying a criminal, Beautiful Gorgeous, the daughter of Professor Calamitous.

Libby is captured by ninjas and Sheen must learn kung fu to save her.

Jimmy spends time with the magician Spamdini, which ultimately sends him and his friends on an interdimensional adventure.

Jimmy travels to the Bahama Quadrangle.

Carl wants to impress a girl by pretending to be a genius, and making Jimmy seem unintelligent in comparison to him.

Jimmy is framed for a crime he didn't commit and goes to jail along with Carl and Sheen and Jimmy must clear his name for something that he didn't do with the help of a local hillbilly.

Worried that his father can embarrass him at school, Jimmy installs a chip in Hugh's ventriloquist dummy that makes him tell good jokes. But when Flippy the dummy begins to malevolently possess Hugh and drain his brain, Jimmy must save his father and change Flippy back to normal.

The kids start a news show, and Libby gets carried away with her gossip segment revealing Jimmy and Cindy dating, and at the end, Jimmy kisses Cindy.

Eustace returns and plans to take over Mars, but Eustace redeems himself and joins forces with Jimmy and his friends.

Jimmy turns Sheen's dad into a superhero.

Goddard runs away from home after losing a pet show and Jimmy, Carl, and Sheen try to find him.

Jimmy and Timmy fight over Cindy, while also attempting to save Dimmsdale from the Anti-Fairies and Retroville from Professor Calamitous. For the first time, Jimmy's friends end up in Dimmsdale instead of just Jimmy, and Timmy's fairies end up in Retroville instead of just Timmy.

Jimmy and Timmy join forces to save both of their universes from getting destroyed by an evil monster of their own creation, which almost leads to losing their friends.