The BEST Episodes of The Adventures of Jimmy Neutron: Boy Genius

Every episode ever - ranked by fan votes!

Last Updated: Mar 4, 2020

Network: Nickelodeon

The Adventures of Jimmy Neutron: Boy Genius follows Jimmy Neutron, his faithful robotic dog, Goddard, and his eclectic friends and family as they experience life in Retroville. Jimmy is a typical kid, who just happens to be a genius. He creates gadgets to improve his everyday life, but his inventions go awry more often than not, and hilarious trouble ensues.

Nightmare in Retroville

#1 - Nightmare in Retroville

Season 2 - Episode 4 - Aired Oct 29, 2003

Jimmy's Neutronic Monster-Maker transforms Sheen into a werewolf, Carl into a vampire, and Hugh into Frankenstein's monster. However, Jimmy's invention works too well, making those three real monsters! The little genius's Halloween is complicated when Carl and Sheen bite Cindy and Libby - now there are five monsters chasing him! Invention: Neutronic Monster-Maker.

star 9.56
9 votes
Writers: Steven Banks
Vanishing Act

#2 - Vanishing Act

Season 3 - Episode 13 - Aired Jan 24, 2006

Vanishing Act Jimmy tries to become a magician to impress Betty, but something goes horribly wrong, and he ends up transporting the group into alternate universes.

star 8.50
4 votes
Battle of the Band

#3 - Battle of the Band

Season 1 - Episode 11 - Aired Oct 4, 2002

Jimmy, Carl, and Sheen form a band for the Talent Contest. Instead of focusing on their music, however, they focus on becoming rock stars - threatening their performance and friendship.

star 8.17
6 votes
Directors: Keith Alcorn
Writers: Spencer Green
Journey to the Center of Carl

#4 - Journey to the Center of Carl

Season 1 - Episode 22 - Aired Jan 31, 2003

Jimmy creates a Sick Patch to make him and his classmates get sick and stay out of school. But when the Sick Patch dissolves into the kids' skin, Jimmy has to go inside Carl to track down the germ and make a vaccine. Invention: Neutronic Sick Patch

star 8.06
35 votes
Directors: Keith Alcorn
Writers: Steven Banks
The Retroville 9

#5 - The Retroville 9

Season 2 - Episode 2 - Aired Oct 3, 2003

Retroville 9 Jimmy's determination to captain a winning baseball team leads him to rev up the equipment with Neutronic technology. When the team unexpectedly reaches the World Championship, Jimmy has a crisis of conscience. Inventions: Hydraulic-force amplifying bat, Sphere-seeking gloves.

star 8.03
38 votes
Writers: Andrew Nicholls, Darrell Vickers, Steven Banks
Hall Monster

#6 - Hall Monster

Season 1 - Episode 16 - Aired Nov 1, 2002

When the old tyrant of a hall monitor moves to Greece, Jimmy is chosen as his replacement. At first, he hates the job. But the power goes to his head, and he vows to "bring Lindbergh Elementary into the new century and beyond," becoming worse than the old hall monitor. Inventions: Hall Pass Authenticator, ID & Background Check Scanner.

star 8.00
3 votes
Directors: Mike Gasaway
Writers: Steven Banks
Love Potion #976/J

#7 - Love Potion #976/J

Season 2 - Episode 9 - Aired Feb 13, 2004

Jimmy shows off his latest invention – a love pheromone – to Carl and Sheen. Anyone exposed to it will fall in love with the first person he or she sees. Jimmy thinks his potion is stored safely in the containment chamber, but Carl accidentally opens it – and love is literally in the air, exposing them all! And Cindy Vortex is the first girl Jimmy sees! Will Jimmy be able to reverse the effects of his latest invention, or will love conquer all? Inventions: Phermone Number 976/J

star 8.00
34 votes
Writers: Gene Grillo
The Great Egg Heist

#8 - The Great Egg Heist

Season 2 - Episode 13 - Aired Mar 10, 2004

The Great Egg Heist Jimmy helps Princess Guan Qi "Peggy" Tsu by retrieving the Egg-Drop Jade from the Retroville Museum before it is stolen by her evil brother. Invention: Null Generator

star 8.00
2 votes
Writers: Gene Grillo
Foul Bull

#9 - Foul Bull

Season 2 - Episode 17 - Aired Mar 26, 2004

Foul Bull During a class trip to a rodeo, Jimmy, Carl and Sheen fall for a cute cowgirl, Sally. To prove themselves worthy of Sally's heart, each of the boys set out to master a specific rodeo talent. Sheen turns himself into a rodeo clown, and Carl wrestles a pig, but it's Jimmy who comes out the victor with his impressive bull riding – and fool proof robotic bull, of course. Once the bull malfunctions however, the boys need the help of a real cowboy to save the day. That cowboy, or cowgirl, turns out to be none other than Miss Fowl. Invention: Hyper-dimentional Super-controlling Electro-Magnet, Bullinator 8000

star 8.00
2 votes
Writers: Andrew Nicholls, Darrell Vickers, John P. McCann
Who Framed Jimmy

#10 - Who Framed Jimmy

Season 3 - Episode 17 - Aired Jan 27, 2006

Who Framed Jimmy Someone's stolen a lot of money ... and the evidence points to Jimmy! Can Carl, Sheen, and Jimmy figure out who's framing the boy genius?

star 8.00
3 votes
I Dream of Jimmy

#11 - I Dream of Jimmy

Season 1 - Episode 9 - Aired Sep 27, 2002

Carl's sleeping problems are hindering Jimmy's scientific research, so Jimmy goes into Carl's dream to see what the problem is.

star 8.00
7 votes
Directors: Keith Alcorn
Writers: Andrew Nicholls, Darrell Vickers
Beach Party Mummy

#12 - Beach Party Mummy

Season 2 - Episode 1 - Aired Sep 19, 2003

Bored by a class documentary on mummies, Jimmy decides to take Carl, Sheen, Libby, and Cindy along with him to see the real deal. But when his Electro-Life gizmo accidentally brings the mummies to life, Jimmy's got to keep himself and his friends from becoming the latest addition to Queen Hazabataslapya's Tomb. Invention: the Electro-Life.

star 7.98
42 votes
Directors: Keith Alcorn
Writers: Steven Banks
Party at Neutron's

#13 - Party at Neutron's

Season 1 - Episode 24 - Aired Feb 17, 2003

Party at Neutron's 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? Invention: Time Accelerator.

star 7.94
32 votes
Directors: Keith Alcorn
Writers: Steven Banks
The Tomorrow Boys

#14 - The Tomorrow Boys

Season 3 - Episode 3 - Aired May 23, 2005

Jimmy, Sheen, and Carl travel 15 years into the future, only to find that some things have gone wrong. Can they right the past to save their future?

star 7.88
8 votes
Directors: Keith Alcorn
Writers: Christopher Painter
Grumpy Young Men

#15 - Grumpy Young Men

Season 2 - Episode 3 - Aired Oct 3, 2003

Grumpy Young Men Jimmy, Carl, and Sheen use Jimmy's Metabolic Accelerator so they can be old enough to buy a violent video game. The machine works a little too well, and the boys end up as senior citizens. Inventions: Metabolic Accelerator, Experimental Truth Syrum

star 7.86
35 votes
Writers: Andrew Nicholls, Darrell Vickers, Steven Banks
Make Room for Daddy-O

#16 - Make Room for Daddy-O

Season 1 - Episode 30 - Aired Jun 6, 2003

The Father's Day talent show is only a few days away, and Jimmy has to perform with his Dad. Hugh can't wait for the big night. Jimmy, on the other hand, is afraid of being disgraced in front of the entire school. Sure he loves his dad, but why must Hugh be so dorky and un-cool? So Jimmy invents a device that will alter Hugh's personality, making him the coolest dad in Retroville. The invention's a success. Hugh is so cool he becomes a huge celebrity. But now this new-and-improved Hugh is too cool to spend time with his son. Jimmy must now come up with a last minute solution that will turn Hugh back into the dad he loves. Inventions: Neutronic De-dorkenator, mirco-fiber-optic tether net.

star 7.80
5 votes
Directors: Keith Alcorn
Writers: Steven Banks
Lights! Camera! Danger!

#17 - Lights! Camera! Danger!

Season 3 - Episode 1 - Aired Nov 27, 2004

The gang enters a script-writing competition, where the winning script will get turned into a movie! The director, Quentin Smithee, chooses Jimmy, Cindy, Libby, Sheen, and Carl (much to Hugh's disappointment) to star in Jimmy's movie, which will be shot entirely in Retroville. During the filming, however, dangerous on-set "accidents" start to happen, and the rest of the kids start to doubt starry-eyed Jimmy and inexperienced Smithee.

star 7.78
37 votes
Directors: Keith Alcorn
Writers: Steven Banks
Return of the Nanobots

#18 - Return of the Nanobots

Season 2 - Episode 7 - Aired Nov 14, 2003

Jimmy tries to update those mischievous Nanobots to correct his non-scientific homework, but the Nanobots become obsessed with pleasing "The Great Creator" and start correcting everything. Invention: Correcto-Tech.

star 7.75
4 votes
Writers: Gene Grillo
The Trouble with Clones

#19 - The Trouble with Clones

Season 3 - Episode 14 - Aired Jan 25, 2006

Evil Jimmy returns! Jimmy needs his evil clone to "be" him so he can up his invention output by staying in his lab while the clone goes to school and spends time with his friends and family, so he tries to make the clone a "Good Jimmy." Of course, things go wrong and Evil Jimmy wreaks havoc around town....

star 7.75
4 votes
See Jimmy Run

#20 - See Jimmy Run

Season 1 - Episode 12 - Aired Oct 14, 2002

After a humiliating defeat by Cindy in the school relay race, Jimmy improves his shoes so he can run at the speed of light! Unfortunately, he gets stuck in this super-fast mode. Unless he finds a way to slow down, he will disappear – for good.

star 7.71
7 votes
Directors: Keith Alcorn
Writers: Butch Hartman, Steve Marmel
Sheen's Brain

#21 - Sheen's Brain

Season 2 - Episode 10 - Aired Mar 8, 2004

Jimmy tries to stop Sheen from getting left back in school by turing his Brain Drain Helmet into a Brain Gain Helmet. However, his plan backfires when Sheen's I.Q. – as well as his head – inflates to a destructive degree. Invention: Brain Gain Helmet

star 7.71
7 votes
Writers: Jed Spingarn
One of Us

#22 - One of Us

Season 3 - Episode 12 - Aired Jan 24, 2006

A children's show has hypnotizing powers and turns the town of Retroville against Jimmy.

star 7.50
4 votes
Ultra Sheen

#23 - Ultra Sheen

Season 1 - Episode 25 - Aired Feb 17, 2003

Jimmy's new invention lets you actually be a player in your favorite video game! Sheen enters UltraLord Versus Robo-Fiend and is later joined by Jimmy. But when Carl enters in Llamapalooza, Jimmy's faced with the problem of getting them all back into the real world. Invention: Neutronic Game Pyramid.

star 7.50
4 votes
Directors: Keith Alcorn
Writers: Gene Grillo
Lady Sings the News

#24 - Lady Sings the News

Season 3 - Episode 20 - Aired Nov 17, 2006

Lady Sings the News The kids become news anchors for a local television network. But Libby's gossip section soon proves to be horrifyingly embarrassing! Can the other kids put a stop to her before it's too late and all their secrets are revealed?

star 7.50
4 votes
Time Is Money

#25 - Time Is Money

Season 1 - Episode 7 - Aired Sep 20, 2002

Through the wonder of time travel; Jimmy goes 15 years into the past to a time when his parents were swinging sweethearts. Jimmy's investment tip changes the future so that the Neutrons become fabulously rich - but with unintended consequences!

star 7.42
12 votes
Directors: Keith Alcorn
Writers: Steve Oedekerk