[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/the_adventures_of_jimmy_neutron_boy_genius_563a9fdbc29ff.png]]

->'''Jimmy''': It's a heavy burden being a man of science.
->'''Sheen''': I know what you mean, Jimmy. That's why I set out early to sabotage my highly scientific brain with cartoons and sugar.

Based on the movie ''WesternAnimation/JimmyNeutronBoyGenius'', this CGI Nickelodeon series continues the adventures of [[TheHero Jimmy]], a preteen genius who creates inventions in his underground lab. He, his robot dog [[RobotBuddy Goddard]] and his best friends; [[TheHeart Carl]], [[TheBigGuy Sheen]], [[BlackBestFriend Libby]], [[PrettyBoy Nick]] and [[TheLancer Cindy]] (and occasionally extra characters like Bolbi or Betty) save Retroville/the world from invention-induced disasters just about every episode. The show lasted from July 2002 to November 2006. It is the 16th [[Franchise/{{Nicktoons}} Nicktoon]], and the first to be animated using CGI.

Of interest is that the film and television series was made from consumer-grade programs. The show strains to compensate for the lack of raw technical power with very clever visuals. As per the very nature of its premise the "science" was either [[HandWave never explained]] or [[TechnoBabble clearly made up]].

It was a fairly successful show, running for three seasons. Throughout the early run of the series, Jimmy became the mascot for Nickelodeon. It was involved in [[WesternAnimation/JimmyTimmyPowerHour a few crossovers with]] ''WesternAnimation/TheFairlyOddparents'' and in later {{Massive Multiplayer Crossover}}s in the ''VideoGame/NicktoonsUnite'' series and ''VideoGame/NicktoonsMLB''.

Although it's now closed, it also received a simulator attraction, known as ''Ride/JimmyNeutronsNicktoonBlast''; which is yet another spin-off that has Jimmy crossing over with other Nicktoons.

Feel free to further amuse yourself by checking out the [[Characters/TheAdventuresOfJimmyNeutron Character Sheet]] or [[FanficRecs/TheAdventuresOfJimmyNeutron FanficRecs]]. Also has a [[Recap/TheAdventuresOfJimmyNeutronBoyGenius recap page]] that could use some WikiMagic.

A Spin-Off has been made, ''WesternAnimation/PlanetSheen''.
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!!This series provides examples of:
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[[folder:Tropes A-M]]
* AbortedArc: The ending of "Men at Work" implies that the alien bandits Zix, Travoltron, and T, will attempt to hunt down and capture Skeet, whom they believe to be the technologically-upgraded [=McSpanky=]'s captain, due his Employee of the Month plack. However, when they're next chronologically seen in "The Incredibly Shrinking Town," they not only don't care for Skeet in the slightest, but he isn't even shown.
* AccidentalHug: Between Jimmy and Cindy in "Retroville 9" after they win their first baseball game against [[DavidVersusGoliath Butch's team]], complete with a brief dance of joy until they catch on to what they're doing and promptly separate with an embarassed look on their faces.
* ActionMom: Jimmy's mother is incredibly athletic, coordinated, intelligent, and she keeps a plasma rifle in her utility closet (for those tough ground-in stains!)
* AdaptationDecay: ShowWithinAShow example; Principal Willoughby's InNameOnly play "Theatre/{{Macbeth}} [[RecycledInSpace In Space]]".
* AdultsAreUseless:
** In the movie, this is taken to its literal extreme, ThereAreNoAdults, when the grown-up population of Retroville is kidnapped by aliens.
** Played straight with Jimmy's dad in the TV series, who is probably one of the biggest idiots in the city.
** {{Inverted}} with [[ActionMom Jimmy's mom]].
* AesopAmnesia: There wouldn't be a lot of conflict if Jimmy and the rest of the main cast didn't have to learn time and time again that abusing science for their own ends always has consequences.
* AffablyEvil:
** Professor Finbarr Calamitous, who would be a menace if he didn't forget half of his schemes.
** His daughter Beautiful Gorgeous inherited this from him.
** Grandma Taters counts as well.
** The Nanobots, by virtue of also being ObliviouslyEvil. Though they're only this towards Jimmy and are a lot jerkier to everyone else (including each other)
* AffectionateParody:"Lights! Camera! Danger!" contains several spoofs of iconic movies.
** The action sequence on the rooftop is based on ''Film/TheMatrix''.
** The "medieval" roller coaster segment makes several nods to ''Film/TheLordOfTheRings''.
** The big musical number, "Save the Day", is a direct parody of "All That Jazz" from ''Theater/{{Chicago}}''.
** The wizard scene is a parody of the ''Film/HarryPotter'' films.
* AIIsACrapshoot: The Nanobots have a bad habit of taking Jimmy's orders to their most logical extreme. After being told to correct for errors and then (attemptedly) [[LogicBomb Logic Bombed]] with "humans' flaws are what make them perfect", they decide to delete humanity.
* AliensSpeakingEnglish: Taken to quite an extreme with not only the Yolkians, but the fact there is a "galactic television lineup" with billions of channels, ''all in English''.
* AllCGICartoon: Notable for being the first film and series animated entirely with off-the-shelf (as in, anyone can buy it) programs, more specifically, [=LightWave=] 3D.
* AlternateHistory: "Time is Money".
* AmbiguouslyGay: Principal Willoughby, with his campy behavior, his love for Creator/JudyGarland, and his love of [[AllGaysLoveTheater musical theater]].
* AnguishedDeclarationOfLove: Almost. Cindy attempts this tactic to calm Hulk!Jimmy down in "The N-Men", but passes out before she can complete her confession.
* AnimeHair: Jimmy's. This is lampshaded pretty regularly.
* AnnoyingLaugh: Beautiful Gorgeous, and even lampshaded by Sheen in "My Big Fat Spy Wedding."
* {{Area 51}}: Appeared in the movie. In "The N-Men", Cindy, Libby, Sheen, and Carl are taken to "Area 86" after they prove unable to control the superpowers that they developed from contact with space radiation.
* ArsonMurderAndJaywalking:
** In "Jimmy for President", this is actually inverted, then played straight.
-->'''Miss Fowl:''' It has come to my attention that some of our candidates have been guilty of bribery, blackmail, and ''MURDER!!'' ''[the kids in the audience gasp]'' Sorry, not murder, I meant operating a zeppelin on school premises.
** In "Grumpy Young Men," the boys want to buy a violent video game that has a Media Classifications describing it as "for mature players only due to violence, exaggerated mayhem, and old lady kicking."
* ArtEvolution: The animation in the series was a MAJOR improvement from the pilot. The show itself gradually improved in scope and visuals, which (as mentioned) was limited by consumer-grade software. Later episodes could be compared to the look of an hour-length drama vs. a studio sitcom, with other shows being more cinematic.
* AscendedExtra: Sheen actually had a very minor role in the movie, basically filling out Jimmy's social circle beyond Carl, only to become exceptionally popular and a much more prominent character in the show.
* AsideGlance: In "Sorry, Wrong Era", Jimmy briefly does one when Carl starts dancing calypso and singing while wearing a hula costume.
* AttackOfThe50FootWhatever: Ms. Fowl in "Substitute Creature".
* BackBlocking:
** "Beach Party Mummy": Jimmy, Sheen, Carl, and Cindy were crowding around Libby to give her a makeover. Carl was the one mostly covering up the screen.
** "Win, Lose, and Kaboom": At one point when fighting Meldar's robot army, the camera pans over to the right until April's mother's back fills the screen. Then the camera zooms out from, Meldar's assistant, Vandana's back.
* BackToBackBadasses: Cindy and April in the made-for-TV-Movie "Win, Lose, or Kaboom!" There's even a scene where they run towards each other and then [[CrowningMomentOfAwesome run up each other's feet as though running up a wall]].
* BadFuture: "The Tomorrow Boys": Garbage-Surfer!Sheen, Wanted!Carl, and [=Loser-Married-To-Cindy!Jimmy=].
* BadJobWorseUniform: "Men at Work".
* BaldBlackLeaderGuy: The head of the BTSO (Big Top Secret Organization) in "Operation: Rescue Jet Fusion" is black and bald.
* BambooTechnology: Trapped in prehistoric times because of his Dad goofing around with a time-warping device, Jimmy built a replica with wood.
* BareYourMidriff:
** Betty Quinlan's Lady Macbeth costume in "Out Darn Spotlight". There is no way this would be worn in an elementary school play in real life.
** There was also Cindy in her N-Men costume
** Same applies for a minor character named [[http://jimmyneutron.wikia.com/wiki/Brittany_Tenelli Brittany]].
* BatmanCanBreatheInSpace: {{Lampshaded|Trope}} in one episode, where Sheen asks how this is possible. Jimmy's explanation is not heard [[HandWave due to Carl singing during it]].
** Also lampshaded in the PlanetSheen pilot.
* BecomingTheCostume: Happens in the Halloween episode, caused by one of Jimmy's inventions.
* BelligerentSexualTension: Jimmy and Cindy are often at each other's throats, but it's implied on more than one occasion that it's all an act to hide their denied attraction to one another.
* TheBermudaTriangle:
** One episode takes place in the "Bahama Quadrangle", which Jimmy, Sheen, and Carl visit so that Jimmy can prove them that nothing supernatural is going on there. They end up finding a super villain/scientist that appears to be the cause for odd sightings and disappearances... [[spoiler:though the ending leaves us questioning it]].
** Sheen once refers to the Bermuda Triangle as the mythological North Dakota.
* BerserkButton: Do NOT Insult Ultra Lord in any way, shape or form in front of Sheen. .
-->'''Sheen''': What are you guys so worried about? Ultra Lord's gonna be here any minute.\\
'''Cindy''': Ultra Lord's not coming, you ding-dong! The Yolkians ''lied'' to you!\\
'''Sheen''': '''[[BigWHAT WHAT?!]]''' Then they have awakened ''the wrath of Sheen!''
* BetaCouple: Sheen and Libby.
* BettyAndVeronica: An unusual example. Betty serves as the well...Betty, but looks more like Veronica and Cindy is the Veronica, but looks more like Betty. In the end he chooses [[spoiler:the Veronica, Cindy.]]
* {{Bizarrchitecture}}:
** [=McSpanky=]'s, which is in a burger-shaped building, also including the giant head of the mascot sticking out of its side, with his mouth serving as the drive-thru window.
** The lolipop on the Candy Bar. Although according to NicktoonsUnite, these are only huge to the cast, and would be even smaller than normal to real, live action humans.
* BlackBestFriend: Libby is black and often hangs around with the rest of the cast.
* {{Blackmail}}:
-->'''Carl:''' Not that fresh air and ticks in your sleeping bag isn't fun, but why do we have to go camping with you, Jimmy?\\
'''Jimmy:''' Because if you don't, I'll be forced to publish these high-definition photos of you two playing with Pompono Beach Debbie Dolls.\\
'''Sheen:''' Pompono Beach Debbie is an action figure! She possesses special powers that can defeat any adversary[[spoiler: ... except Ultra Lord, of course.]]
** In the episode where Libby, Sheen, and Jimmy run for class president: Sheen blackmails Carl with an embarrassing photograph of him at a party.
--->'''Sheen:''' The one with the [[NoodleIncident bubbles]]!
* BondVillainStupidity: Professor Finbarr Calamitous in "Operation: Rescue Jet Fusion".
* BrainCriticalMass: Jimmy's normally ditzy friend Sheen gets his intelligence increased with Jimmy's Phlebotinum and gains telekinesis.
* BrainMonster: The Brains, contestants in the Galactic Showdown game. They bragged on how they evolved to not need bodies anymore, as they consisted of nothing but floating brains.
* BrainWashResidue: Depending on your interpretation of the episode "Love Potion 976/J". Considering that we don't know the extent of the after effects of those love potions, you could have a nice debate on whether Jimmy, Sheen, and Carl's respective loves for Cindy, Libby, and Judy is "real".
* BrawnHilda: After time traveling into an alternate future where he is rich, Jimmy soon discovers he has a cranky, hideous nanny named "Hilgo."
* BrilliantButLazy: Why do something as simple as neatly put away your piles of pants when you can implant chips in them that do it for you? Carl and Sheen call him out on this, though.
* TheBully: Butch is a typical school bully who doesn't have any friends, but an even bigger one is Terry in "Safety First".
* BumblingDad: Hugh.
* ButtMonkey:
** Jimmy. His inventions usually cause troubles. And when it doesn't come to his inventions, he's picked on by those left and right.
** Carl. He's the Guinea pig to all of Jimmy's experiments.
** Nick becomes this in later seasons of the show, with almost every scene usually involving him getting in an accident and injuring himself.
* CannotSpitItOut: Cindy and Jimmy to each other, and, to a lesser extent, Libby to Sheen.
* CantGetInTroubleForNuthin: Carl is too safety-prone to ever get in a bind.
* CaptivityHarmonica: After being thrown into the brig by the Junkman, Sheen does this.
* CatchPhrase: Jimmy - "Gotta Blast" in the movie and "Brain Blast" in the series.
* CatFight: Cindy and GreenSkinnedSpaceBabe April the Gorlock in "Win, Lose, or Kaboom".
* CharacterDevelopment: Throughout the series you can note small but noticeable changes in character interaction. Especially when it comes to [[OfficialCouple romantic couples]].
* ChekhovsGun: The solution to the problem in the episode is usually this.
* ChosenOne: Sheen is called "The Chosen One" by the monks of Shangri Llama, thanks to his strange ability to put his foot behind his head. Subverted because the monks don't really believe he's the ''true'' Chosen One - they were just sick of waiting around for the real one to show up. So he's a [[ShapedLikeItself chosen]] ChosenOne?
* ChristmasEpisode: "Holly Jolly Jimmy". The only one Christmas-themed episode in the entire show as well as the only one that aired in the month of December (2003 to be exact).
* ColonyDrop: A meteor starts to head toward Retroville just after Jimmy dumbs himself down.
* ComedicUnderwearExposure:
** Jimmy, Carl, Sheen and Cindy's pants get minds of their own and run away... ''in the first episode.''
** The famous "I see London..." gag is actually said in the first episode/movie, by Cindy, when Jimmy's pants fall down.
--> '''Cindy''': I see London, I see France!\\
'''Carl''': Wow, you have really good eyesight....
** It should be noted that this gag is usually used for females. Which turns this into TemptingFate when, in the ''very'' next shot of her seconds later, Cindy's pants have run away, giving both the world and the audience a great look at ''her own'' underpants.
* ComicTrio: Jimmy, Sheen, and Carl.
* ConfusingMultipleNegatives: Sheen to Mrs. Fowl in "Sheen's Brain". Carl tries the exact same trick, but Mrs. Fowl tells him to "PLANT IT!"
* ContrivedCoincidence: See Colony Drop above.
* CouldHaveAvoidedThisPlot: Though none of them say directly, the Neutrons and Wheezers are angry at Sheen for this at the end of "The Feud" since he never told Hugh [[spoiler: that Sam at The Candy Bar borrowed Hugh's Lawn Lopper]] prior to the titular feud.
* CoveredInGunge: In "The Tomorrow Boys", a bucket full of Mrs. Vortex's repulsive chafing-foot scum gets dumped all over Sheen's head.
* {{Crossover}}s: Three times with ''WesternAnimation/TheFairlyOddparents'' in the ''Jimmy Timmy Power Hour''s.
* DaddysLittleVillain: Beautiful Gorgeous is Professor Calamitous' daughter.
* DemonicDummy: Flippy.
* DemotedToExtra: Nick - he was a somewhat relevant character in the movie, even with just an InformedAbility. After season 1, he hardly gets any screen time. There were plans to bring him back to the main cast in season four, however.
* DenserAndWackier: The crossovers with ''WesternAnimation/TheFairlyOddparents'' generally use humor more like the latter show, with the characters acting even sillier and getting into screwier situations - as well as much more slapstick. This happens especially when the characters are actually in Dimmsdale (which compared to Retroville is practically CloudCuckooLand).
* DisqualificationInducedVictory: During a parent/child competition, Jimmy uses technology to augment [[BumblingDad his dad's]] athletic skills and ends up disqualified.... and his [[TheRival Rival]]-slash-[[SheIsNotMyGirlfriend not-girlfriend]] also gets disqualified because she used an Olympic-athlete aunt as a ringer for her mom... and then every other team admits to doing a disqualification-worthy fault at one point of the competition or another, leaving only Jimmy's [[TheChewToy Chew Toy]] friend Carl and his equally-unlucky dad [[ThrowTheDogABone (who were dead last) the winners by default]].
* DistractedByTheSexy: Sheen with practically any attractive female (most notably Libby, Beautiful Gorgeous, Sally and Princess Guan Qi "Peggy" Tsu); Jimmy with Betty Quinlan, Sally, April, and later with Cindy. And Carl with Jimmy's mom.
* TheDitz - Bolbi, though he seems like just a goofy foreigner at first.
* DoAnythingRobot: Goddard, Jimmy's RobotDog, seems to have a large arsenal of gadgets tucked away inside his chassis.
* DoorToDoorEpisode: Complete with Jimmy using science to employ a ZanyScheme.
* DreamingOfAWhiteChristmas: Averted in "Holly Jolly Jimmy". There is no snow in Retroville during Christmas, understandably, since it's in Texas. However, there are snowflakes falling right before the credits roll, so...
* DutchAngle: Spoofed in "The Evil Beneath" where during the villain's brief and crazy MotiveRant the camera slowly tilts itself, [[PaintingTheMedium which causes his henchman and furniture to slide in the direction the camera is tilting.]]
* EarlyInstallmentCharacterDesignDifference: Most of the core cast have had their clothes and/or hair changed between the movie and the show (Libby's case it was between Season 1 and 2):
** Jimmy originally wore navy blue shorts and brown loafers giving him a more nerdy look, this was changed to blue jeans and sneakers making him look more kid-like.
** Carl wore suspenders in the movie but loses them in the show.
** Cindy wore a pink button-up shirt and black jeans. She also had her hair in pigtails. In the show she wears her hair in a single ponytail and wears a green halter shirt with khaki pants.
** Libby retained her movie look until "Beach Party Mummy" when she decided to keep her Egyptian style braided hair used to disguise her as an Egyptian queen. In the following episode, her wardrobe also changed from a green dress to a pink shirt with navy blue pants.
* EatTheCamera: Done quite a bit.
** One example is seen at the end of "The Phantom of Retroland" after among seeing [[spoiler:the real Phantom]], Hugh runs screaming right into the camera, his mouth covering the frame and turning it black.
** It's also done during the "Funky Jam Dance Party" musical number in "Broadcast Blues", zooming into Brittany's singing mouth.
** It also happens in "Grumpy Young Men" when scouts Cindy and Libby attempt to help the elderly Jimmy across the street, as he yells "I'm being old-napped!"
* EgocentricTeamNaming:
** When Jimmy and his friends gain superpowers due to cosmic radiation he immediately calls them the "N-Men" (as in, Neutron Men), despite a couple of protests.
** In the episode where they form a band, Sheen proposes the name "Sheen and the Sheenettes".
* [[PlotTailoredToTheParty Eigen Plot]]: Win, Lose, and Kaboom, to the point where Jimmy's CharacterDevelopment is based around realizing it is one and learning he can't do everything by himself.
* ElectionDayEpisode: One episode had Cindy and Jimmy face off against each other for class president. [[spoiler: They were both disqualified for cheating, so the election is given to [[DarkHorseVictory Bolby the weird new foreign exchange student]].]]
* EpicFail: After losing to many times in a gym race against Cindy, Jimmy sprays his shoes with a chemical compound to give him super speed. He runs in circles around her and showing off how fast he is, all gloating and confident, but he ''still'' lost. Why? Because he fell for the old point-and-look-behind-your-back distraction, the object of interest being a "1957 Van de Graff electrostatic generator".
* EskimosArentReal: Sheen is positive that ancient Egyptian curses are a myth, just like the Loch Ness Monster and North Dakota.
* EurekaMoment: Almost every episode has Jimmy coming with a solution to the problem of the day with his mind.
* EveryoneCanSeeIt: Jimmy and Cindy. Thankfully, the BelligerentSexualTension gradually faded into a genuine attraction, and they finally got together in the last episode of the series.
* EverythingsBetterWithDinosaurs: "Sorry, Wrong Era".
* EverythingsBetterWithMonkeys: The Atomic Monkey Special Forces Squad led by Colonel [=McSwane=] from "My Big Fat Spy Wedding".
* EvilTwin: Jimmy's evil clone in "Send in the Clones".
* EvolvingCredits: Certain clips in the opening eventually got replaced with clips from newer episodes. Libby got [[PromotionToOpeningTitles promoted to opening titles]] at the same time.
* ExactlyWhatItSaysOnTheTin: From the opening credits: "This is the theme song... for Jimmy Neutron".
* {{Expy}}:
** When they all get superpowers it is exactly the same as other well-known superheroes. Cindy has Franchise/{{Superman}} flight and strength, Libby is [[Franchise/FantasticFour The Invisible Woman]], Sheen is ComicBook/TheFlash and Carl...well has burps that seem like ComicBook/BlackCanary. Jimmy was originally just turned orange, until [[ComicBook/TheHulk he got angry...]]
** Tee is an alien who talks and acts like Creator/MrT.
** And another alien, Travoltron, acts like Creator/JohnTravolta. Or at least his character in Film/SaturdayNightFever.
** The third one, Zix, talks like Jon Lovitz. A bit more devious than Jon Lovitz though ...
** Quentin Smithee seems to be simply an expy of Creator/QuentinTarantino (combined with a nod to the tendency for directors who have disowned films to credit themselves as AlanSmithee) up until we find out [[spoiler: he's actually Professor Calamitus]]
** Jet Fusion is a Film/JamesBond expy.
* FaceFullOfAlienWingWong (Carl is impregnated with an alien child in "Who's Your Mommy?". The extra fat grows out from well, his butt - but let's not go there.)
* FaeriesDontBelieveInHumansEither: Pops up at the end of the sleepover episode. The climax of the episode features a series of increasingly-nonsensical {{Catapult Nightmare}}s involving the various characters and a flying vampiric [[ImAHumanitarian cannibal]] pizza. The final nightmare turns out to belong to an actual pizza vampire, sleeping in his pizza box; when he explains his terrible dream to his wife, she consoles him that children don't exist, everyone knows that.
* FamousFamousFictional: In "The Incredible Shrinking Town", Carl tried to cheer Jimmy up after he said he was upset for being short.
-->'''Carl''': "Aw don't let it get to you, Jim. I mean, think about the famous short people; [[UsefulNotes/NapoleonBonaparte Napoleon]], [[UsefulNotes/JohnAdams President John Adams]], [[Film/TheLordOfTheRings Frodo]]..."
* FantasticVoyagePlot: "Journey to the Center of Carl".
* FemBot: In the episode "Maternotron Knows Best", Jimmy constructs a robotic substitute mother while Judy is away at the spa.
* FMinusMinus: In one episode, Sheen gets an F with ''[[UpToEleven four]]'' minuses on a test.
-->'''Sheen''': Well how would I know [[BookDumb Ultra Lord wasn't our founding father?]] That's what it said in the Ultra Lord website!\\
'''Jimmy''': Wait; didn't ''you'' write the Ultra Lord website?\\
'''Sheen''': [[ComicallyMissingThePoint Your point?]] (''[[{{Beat}} Jimmy walks away as Sheen thinks for a moment]]'') Oh...
* TheFriendNobodyLikes: Sheen. He constantly annoys everyone with his constant ramblings about Ultra Lord, his annoying shouting, his low intelligence and there's the fact that he can be insensitive.
--> '''Sheen''': Hey Robot! If the Junkman turns your parents into gravadiscs, can I have one?
--> '''Jimmy''': Sheen!
--> '''Sheen''': But they look so cool.
--> '''Robot''': I don't like Sheen.
--> '''Carl''': Tell me about it.
** Jimmy too, in a small way. His brains, brilliance and him constantly putting the town (and sometimes, the world) make him very unpopular with the kids.
* FreakyFridayFlip: Jimmy and Cindy in "Trading Faces". Incidentally, at the end (where they had to manually switch back their memories) they found that one of the two had an extreme dislike of the other one. However Sheen said that it got too confusing reading the hilariously long name and deleted it, never getting to the end (and thus, figuring out who it belonged to). It is after that one that the two started getting closer.
-->'''Carl''': "[[DepartmentOfRedundancyDepartment Extreme dislike of girls who dislike boys who dislike girls who dislike show-offy boys who dislike...]]"\\
'''Sheen''': TOO CONFUSING! ''Just throw that one away!''
* FreeRangeChildren: The fifth grade cast behaves more like young adults/older teenagers. They run all about Retroville, hang out at the local fast food joints, and that's only what they do when not on an adventure caused by Jimmy's invention.
* FromTheMouthsOfBabes: Baby Edward "Eddie" Neutron, Jimmy's infant evil cousin, who can be ''very'' crass at times.
* FunnyForeigner: Bolbi Stroganovsky from Backhairistan. "Slap slap slap, clap clap clap, slap, slap, slap, clap clap clap..."
* FutureLoser: Jimmy in the bad future in "The Tomorrow Boys".
* GarageBand: There was an episode where Jimmy & co. try to start a band for a talent show.
* GettingCrapPastTheRadar: Now with its [[Radar/TheAdventuresOfJimmyNeutronBoyGenius own page.]]
* GhostInTheMachine: [[AffectionateParody Playfully parodied]] in "Incredible Shrinking Town", where Sheen pretends to be Tee's inner voice.
--> '''Tee''': "Thanks, bug in mah head!"
* GiantSpider: "Stranded".
* GirlsHaveCooties: Jimmy, Sheen, and Carl all exhibit this sentiment from time to time, especially at the beginning of the series. It wears off as the show progresses, however, giving way to DistractedByTheSexy.
* GiveGeeksAChance: Sheen and Libby, definitely.
* GodzillaThreshold: In the finale, Jimmy asks Carl to take his rocket and bring the N-Men packets with him. You know, the chemicals that would bring back [[CastFromLifespan the superpowers that put the entire cast on the brink of death]] last time? [[OhCrap Carl sure does]].
* GoldFever: Ruby madness in "A Beautiful Mine".
* GoofyPrintUnderwear:
** In "When Pants Attack", Hugh runs around in a pair of white, heart-covered boxers. He can be seen wearing these (and only these!) again in "Lights! Camera! Danger!" during his Gollum impression.
** In the same episode everyone else has these, including Sheen's imported Ultralord underwear, Jimmy's plaid boxers and Cindy's polka dot panties.
** On one occasion, Carl's underwear was said to have llamas on them.
* GreenSkinnedSpaceBabe: April the Gorlock.
* GroundhogDayLoop: Jimmy's birthday in "Hypno-Birthday to You".
** {{Justified|Trope}} in that his parents were brainwashed to think every day was his birthday.
* HalloweenEpisode: "Nightmare in Retroville".
* HandPuppet: Sheen in "Broadcast Blues".
* HandshakeRefusal: In "The Eggpire Strikes Back", Jimmy refused to shake hands with King Goobot, suspicious of a picnic he's hosting.
* HandWave: Naturally, due to the show playing fast and loose with science. Most blatantly used when Sheen asks Jimmy [[BatmanCanBreatheInSpace how they could survive in space without spacesuits]] or [[SciFiWritersHaveNoSenseOfScale how they can get to the moon in mere minutes]], but Carl's singing blocks out Jimmy's answers.
* HappyDance: This is Bolbi's [[TheGimmick defining characteristic feature]].
* HatePlague: Ruby madness in "A Beautiful Mine".
* HeadDesk: Done by Jimmy when he couldn't think of a script for a movie.
* HilariousOuttakes: These appear out of the blue at the end of the episode "Crouching Jimmy, Hidden Sheen".
* HollywoodToneDeaf: Sheen is mocked relentlessly for his inability to sing throughout the series - there is even a reprise song number at the end of "My Big Fat Spy Wedding", where the characters belt out in glorious harmony "We all can sing except Sheen!" Becomes beneficial in "Attack of the Twonkies" - Sheen's singing is ''so bad'' that it actually puts the Twonkies (who normally become enraged and then mutate when they hear music) to sleep.
* HornedHairdo: In one episode, Jimmy clones himself to make multiple {{Literal Split Personalit|y}}ies. The evil clone has two tufts of hair in contrast to Jimmy's one.
* HorribleCampingTrip: "Aaughh!! Wilderness!!" due to Hugh's stupidity.
* HowDoIShotWeb: "The N-Men".
* HumansAreMorons: Meldar and most of the aliens from "'Win, Lose and Kaboom" laugh at the human contestants because it took them long to transport themselves to the game show.
* HypnoRay: This TropeNamer is one of Jimmy's inventions.
* IdiosyncraticWipes: Almost every scene transitions with the show's trademark atom logo flying away and then back towards the camera, with several similar music cues to accompany it.
* IdiotHero: For a [[TVGenius genius]], Jimmy sure makes a lot of utterly stupid decisions. In fact, most of the conflict that goes on in this show is the result of Jimmy making a [[NiceJobBreakingItHero questionable judgment call]] in the first place regarding his experiments. But then again, Jimmy's lack of common sense is arguably one of the main points of the series. He may be a "genius," but he's still a child.
* ImAHumanitarian:
** Implicitly Carl, after thinking his stomach was growling during the HorribleCampingTrip (it turned out to be a bear.)
-->'''Carl:''' Oh no... It's starting! The gnawing hunger! MUST... RESIST... DESIRE... FOR HUMAN FLESH!!''
** Carl again in "Raise the Oozy Scab" after Jimmy's submarine gets lost in the Sea of Japan:
-->'''Sheen:''' We can't be lost! We only have enough food for three days! And I'm not eating Carl!
-->'''Carl:''' Well I'm not eating you either! ({{beat}}) Okay, maybe a bite.
--> *Sheen and Cindy both back away from Carl*
* IKnowKarate: Cindy - she actually says this in "King of Mars".
* ImportantHaircut: Libby gets one in the episode "Beach Party Mummy" to fool a bunch of mummies that were chasing the gang. She keeps the new look for the remainder of the series.
* ImpossiblyDeliciousFood: In the episode "Krunch Time", Jimmy creates a candy that has every enjoyable flavor imaginable, which causes problems when everyone in Retroville becomes completely addicted to it.
* IncredibleShrinkingMan: Jimmy at various points throughout the series. {{Lampshaded|Trope}} in "Incredible Shrinking Town".
* IngestingKnowledge: Jimmy creates Books Chewgum with this effect.
* {{Leitmotif}}: Hugh has his own character theme when ever he has a father-son moment with Jimmy or any scene where he gives a speech.
* JourneyToTheCenterOfTheMind: Jimmy goes to Carl's mind in "I Dream of Jimmy".
* JustTestingYou: "Carl Wheezer, Boy Genius" has this exchange:
-->'''Jimmy''': May I suggest that instead of the arm-missiles button, you push the one right below it?\\
'''Carl''': I know what button to push! I was just testing you.
* KidsAreCruel: Most of the other kids feel no sympathy towards Jimmy and even hurl insults at him when his inventions go awry.
* KnightOfCerebus: When Sheen has his brain altered in "Sheen's Brain", he slowly goes insane with increasing intelligence and growing PsychicPowers, ultimately becoming a RealityWarping {{Sociopath}} who's too power-crazed to care about the fact that his head will eventually explode. He even brutally strikes Jimmy and Carl with a lightning bolt. Thankfully, he ultimately realizes that he's turned into a monster and changes back to normal, but ''damn''.
* LadyLooksLikeADude: Carl's mother is the ugliest female on the show. With a very hoarse ''masculine'' voice. Helps that like Carl, and Mr. Wheezer, she is voiced by RobPaulsen.
* LargeHam: Both King Goobot and Ooblar have their moments. "[[CrowningMomentOfFunny HELLO, TOAST!]]"
* LastMinuteHookup: Jimmy and Cindy in "Lady Sings the News".
* LatexSpaceSuit: Cindy in "King of Mars".
* LegionOfDoom: "The League of Villains".
* LimitedWardrobe: The only time a character's plain-clothes outfit changes is the episode where Libby gets a makeover, and declares that she's keeping the new look. From then on, ''that'' became the outfit she wore every episode.
* LoveTriangle:
** Betty and Cindy toward Jimmy, though the latter two would claim not to like each other.
** In the Jimmy Timmy Power Hours, there was also [[WesternAnimation/TheFairlyOddParents Timmy]]/Cindy/Jimmy -- the two boys fight over her in the second power hour ("When Nerds Collide"), but Cindy ends up [[spoiler: in a way, going with ''both'' of them since she wished for a cross-dimensional dance party for Dimmsdale and Retroville's elementary schools so she can dance with both Jimmy and Timmy.]]
** Carl's infatuation with Jimmy's mother.
* LovePotion: Another one of Jimmy's inventions. It causes him to fall for Cindy, and Sheen for Libby. And Carl falls for Jimmy's Mom, which then goes on to become a RunningGag.
* MadScientistsBeautifulDaughter: Beautiful Gorgeous, Calamitous' daughter, subverts this: she's actually evil.
* TheMasochismTango: Jimmy and Cindy
* Creator/MelBrooks: Guest stars in the ChristmasEpisode...as ''SantaClaus''.
* MesACrowd: Jimmy's clones in "Send in the Clones"; each one represents a different personality type.
* MeaningfulName:
** James "Jimmy" Isaac Neutron is not surprisingly, interested in science.
** Also Jimmy's classmate Nick Dean, a child version of move badboy James Dean.
** Sheen Estevez; a ShoutOut to Charlie Sheen and Martin/Emilio Estevez.
** And Jet Fusion, the in-show version of James Bond (fusion actually means bond)
** [[MadScientistsBeautifulDaughter Beautiful Gorgeous]] is [[ShapedLikeItself beautiful and gorgeous.]]
** Movie director Quentin Smithee, [[AlanSmithee who had no records at all]]... [[spoiler:because he was really Professor Calamitous in disguise.]]
* MindScrew: Jimmy traversing Carl's Dream. Being well, a dream, for the most part, it has no logic or sense. Though like most dreams, Carl sees it as perfectly normal. So Jimmy, in order to prove to him, without a doubt, that this is not the real world, does something that could possibly never happen in real life, he kisses Cindy.
* MissingMom: Sheen. WordOfGod says his mother died when he was young - they don't say her cause of death, however.
* MisterSeahorse: See FaceFullOfAlienWingWong above.
* MonsterMash: Occurs in the HalloweenEpisode, "Nightmare in Retroville", where Carl and Cindy become vampires, Sheen and Libby become werewolves, Hugh becomes FrankensteinsMonster, and Jimmy becomes Hugh's favorite monster Octopus Man to stop them from wreaking havoc in Retroville.
* MusicalEpisode: "Holly Jommy Jimmy", doubling as the ChristmasEpisode.
* MyFutureSelfAndMe: Jimmy, Carl, and Sheen all get to meet their future selves as well as future Cindy and Libby.
[[/folder]]
[[folder:Tropes N-Z]]
* NakedPeopleAreFunny:
** In "Jimmy Goes to College", the boy genius streaks through the halls of the Pomona School of Advanced Physics - only to find himself face to face with the elderly female patroness of the coveted Moran Grant. He quickly covers his front with a book and his backside with an exit sign.
** In the movie, Sheen can be seen naked - peeing, in the shower.
-->'''Sheen''': I'm peeing! In the shower! I'm still doing it! ''( Pumps both hands in the air)'' Go go go!
* NeverMyFault: In "King of Mars", Cindy blames Jimmy for her brief FaceHeelTurn with Eustace, for never paying any attention to her, and after Eustace double-cross her.
* NeverSayDie: In "The N-Men", Jimmy has to save himself and his friends before their "life forces" are depleted. Overall, however, the show doesn't shun away from terms like "kill", "die" or "murder".
* NeverTrustATrailer: The opening credits to "Operation: Rescue Jet Fusion" feature Cindy and Libby who otherwise never once appear or are referenced to throughout the entire special.
* NiceJobBreakingItHero:
** Nearly every episode and movie is this. Jimmy's inventions and motives usually cause the problem of the week and it's up to him to fix the problem he caused.
** Of course, Jimmy's friends also get in on the act every now and then. In "The Eggpire Strikes Back" [[spoiler: Cindy told King Goobot how to get into Jimmy's lab, giving him the tools he needed to revive Poultra.]]
* ObliviouslyEvil: The Nanobots. They believe themselves to simply be doing what Jimmy wants/programmed them to do, and they kind of are...but they always take it much farther than they should. They both genuinely respect and revere Jimmy as their creator otherwise.
* OffscreenTeleportation: Seems to be an ability of the Needleheads from "Win, Lose and Kaboom".
* OneWheeledWonder: Jimmy Neutron designed his android little brother Brobot this way.
* OnlyKnownByTheirNickname: Almost every major character.
* OutOfFocus: Jimmy's parents, come Season 3, where they are absent for as many as 8 episodes, whereas in the previous two seasons Hugh and Judy Neutron respectively skipped as few as two and three episodes altogether, possibly because of Cindy, Libby as well as villains taking up much more screen time this time around.
* OverlyLongScream: {{Lampshade|Hanging}}d by Carl in "The Tomorrow Boys" when Jimmy finds out in the Bad Future that he is '''[[MarriedInTheFuture married]]''' to Cindy. He starts screaming, we cut to commercials... We come back, and he's still screaming.
-->'''Carl:''' "Wow, Jimmy, you just screamed for [[LeaningOnTheFourthWall 4 minutes]]."
* OtherMeAnnoysMe: Jimmy can handle most of his clones, but he really hated the craftiness of his evil clone.
* PantyShot:
** Cindy gets a few... [[strike:gracious]] {{egregious}} shots (blue thong) in "The N-Men".
** In "When Pants Attack", (the FIRST episode, no less) Cindy loses her pants completely, revealing her light-pink panties with red polka-dots. Needless to say, this did NOT amuse her.
** In a Nicktoons Christmas short "Patrick The Snowman", Libby is seen in a green bra and panties with pink sound waves on them.
** Libby is also subjected to a more subtle one in "Hall Monster." When she curls up into a ball on the floor, you can see she has white panties up her skirt.
* ParodyNames: Quite a few of the [[IdiosyncraticEpisodeNaming episode titles]].
** Examples include "I Dream of Jimmy" (I Dream of Jeannie), "A Beautiful Mine" (A Beautiful Mind), "The Junkman Cometh" (The Iceman Cometh), "Love Potion #976/J" (''Love Potion #9''), "Crouching Jimmy, Hidden Sheen" (Crouching Tiger, Hidden Dragon), "My Big Fat Spy Wedding" (My Big Fat Greek Wedding), and "Trading Faces" (Trading Spaces, although the episode was originally titled "A Mind is a Terrible Thing, Two Ways" - a parody of the educational slogan "a mind is a terrible thing to waste).
** "Journey to the Center of Carl" (Literature/JourneyToTheCenterOfTheEarth) is ''actually'' a FantasticVoyagePlot.
* ParodyEpisode: Quite a few. "Lights! Camera! Danger!" is notable for combining parodies of ''Film/TheMatrix,'' ''Film/HarryPotter,'' ''Film/TheLordOfTheRings,'' and ''Chicago,'' and [[ReferenceOverdosed references a truckload more.]]
** Specific targets for a single parody episode include ''Film/{{Jaws}},'' ''Film/FantasticVoyage,'' and ''Film/TheTreasureOfTheSierraMadre'', and there's one episode devoted to poking fun at various superhero movies. One episode is devoted to old horror monsters like ''Film/{{Frankenstein|1931}},'' ''Film/{{Dracula|1931}},'' and ''Film/TheWolfMan1941.'' Not even ''Theatre/{{Macbeth}}'' and ''StarWars'' were immune. In the same episode. At the same time.
* PlayingSick: Invoked by Jimmy when he invents patches that make the wearer sick when applied. He gives them to the rest of the kids so they can skip school. [[spoiler:Until they get absorbed into their bodies, forcing Jimmy and Sheen to pull a FantasticVoyagePlot into Carl to get the cure needed.]]
* PhlebotinumInducedStupidity: Jimmy's Brain Drain in "Normal Boy" makes him an idiot.
* PilotEpisode: Included on some DVDs was the original pilot of the show, which involved Hugh trying to convince Judy that Jimmy would soon be back from his attempt to run away from home while Jimmy was in reality trying to fend off an invasion of aliens he'd inadvertently caused, which Nickelodeon liked so much that they made it into the BigDamnMovie that started it all.
* PivotalWakeup
* PlotInducedIllness: {{Invoked|Trope}} when Jimmy invents a "sick patch" that make the wearer sick when applied, which the kids then use to stay home from school.
* PottyEmergency:
** Professor Calamitous's debut episode had Jimmy defeat him when he remembered that the villain didn't install a bathroom in his robot suit and had him lured past a statue fountain of a urinating boy, a dog marking its territory on a fire hydrant, and a man watering his lawn with a hose to force him to stop for a bathroom break. Jimmy then had a police officer occupy the men's room. Calamitous briefly considered using the girl's room, but is beat to it by a little girl, causing him to go home in defeat.
** Sheen spends a lot of the episode "Beach Party Mummy" needing to pee.
* PrecociousCrush:
** Carl toward Jimmy's mom, Judy.
** Carl and Sheen both show attraction to Beautiful Gorgeous in "Operation: Rescue Jet Fusion" even though she is in her 20's.
* {{Premiseville}}: Retroville has a retro theme.
* PteroSoarer: "Sorry, Wrong Era" has a classic example in the form of a ''Pteranodon'' that, for a short list, is called a "pterodactyl", is scaly, has pointed leathery wings, can pick things up with its feet, rears its unusually large young like a bird, flies inland, eats lizards instead of fish, lives in the same time as T-Rex and is bipedal. That being said, the writers did manage to get the lack of teeth and single wing finger right (although said wing finger is unusually flexible).
* PunnyName: Ms. Fowl has a few bird-like attributes
* RealAwardFictionalCharacter: When Jimmy peeks into his and his friends' futures in one episode, he sees himself as the first-ever winner of the Nobel Prize in bulk.
* RealityWarper: Meldar, the BigBad of "Win, Lose and Kaboom" can do this thanks to his matrix generators. He even ''says'' that he can warp reality.
* RecycledInSpace: InUniverse. The school play from ''Out Darn Spotlight'' was known as ''Theatre/{{Macbeth}} [[RecycledInSpace in Space]]''.
* RecycledTheSeries: This show was the result of the successful [[JimmyNeutronBoyGenius Jimmy Neutron movie]].
* RecurringExtra: The Twonkies.
* ReedRichardsIsUseless: Jimmy and his parents could have been millionaires if he sold some of his inventions instead of just making them for fun. They backfire way too much for someone to mass produce them, though. Also, Jimmy's dad once got a job making toys, which Jimmy amped up with his technology. The first one was met with such success that he got the job... as long as he kept designing toys of that same calibre every day. Jimmy ended up exhausting himself after a few days, which led to the accident of the week; the Nanobots making a rampage on Retroville on a doll-faced toy tank that grew in size to be a real tank.
* RetroUniverse: Retroville.
* ReusedCharacterDesign: Guilty as charged, although only ocassionaly:
** In "Granny Baby", [[ExactlyWhatItSaysOnTheTin Granny Neutron is turned into a baby]] and her character model is reused for Baby Eddie, a recurring villain in some of the future episodes, as well as Beautiful Gorgeous in a slide featuring her as an infant.
** In "Jimmy Timmy Power Hour 2", Professor Calamitous turns Cindy into a fish that just happens to look exactly like Carl's favorite pet, Swimmy.
* RewindGag: This (as well as a bit of FastForwardGag) happens over and over again in "Sorry, Wrong Era", with Jimmy's RewindReplayRepeat invention. Let's just say that [[TheDitz Hugh]] abuses this power for his own amusement...
* RingRingCrunch: Done in "The Mighty Wheezers," when Carl destroys his alarm clock with his fist with his new strength.
* RivalTurnedEvil: An unusual case in "The N-Men" - Jimmy himself is this due to finally getting fed up over how Cindy keeps overshadowing him. This sets him on a HulkingOut rampaging spree, and the irony is that the only one who stops him is Cindy herself.
* RobotBuddy/RobotDog: Goddard.
* RobotKid: Brobot.
* RomanticFalseLead: Betty.
* RunningGag:
** Jimmy making something using Hugh's toasters.
** Carl's crush on Jimmy's mom, Judy.
** Nick hurting his leg and [[CaptainObvious stating the obvious]] immediately afterwards. Weirdly, the ''exact same footage'' is used for this scene every time this happens. "Lady Sings the News" even [[LampshadeHanging Lampshades]] it when Jimmy and Cindy note that this has happened ''15 times'' with Nick, and that everyone is ''expecting'' it to happen to Nick again shortly after he recovers.
** The Twonkies that Sheen had after an episode appear in several later episodes; they don't morph however.
** Various iterations of "the little boy's room" are used when a character has to pee, including "the little boy's ocean" by Carl when the boy's are flying over the ocean in Jimmy's hovercraft.
** Carl also had his highly sensitive scapula.
* SamusIsAGirl: Beautiful Gorgeous. She was wearing robotic armor similar to Samus'.
* SarcasmBlind: Cindy in "Out, Darn Spotlight".
* SassyBlackWoman: Libby.
* SatireParodyPastiche: Numerous examples of this include "Attack of the Twonkies" (''Film/{{Gremlins}}''), ''Monster Hunt'' (''Film/{{Jaws}}''), "Stranded" (''Film/CastAway''), "Love Potion #976/J" (''Love Potion #9''), "Lights! Camera! Danger!" (''Film/TheMatrix'', ''Literature/TheLordOfTheRings'' and ''Literature/HarryPotter'', to name a few), "Win Lose and Kaboom" (every gameshow ever) and "Operation: Rescue Jet Fusion" (''Film/JamesBond'').
* SchoolPlay: ''Theatre/{{Macbeth}} in Space''.
* SchmuckBait: "Don't look in the peep hole!"
* ScienceHero: Jimmy, who solves the problems his inventions create.
* SelfDestructMechanism: Goddard has one, though he can reassemble himself.
* SeverelySpecializedStore: Retroville has stores like Cheese World, Mime World, and Rug World.
* SharePhrase: "To the lab!" and other variations. It starts as Jimmy's phrase, then the other characters - mostly Sheen - [[LampshadeHanging start fighting over being the one to say it.]]
* {{Shout Out}}s:
** Some episode titles, such as "[[Series/TheTomorrowPeople The Tomorrow Boys]]".
** [[WesternAnimation/ActionLeagueNow Meltyface]], [[WesternAnimation/KaBlam anyone?]]
** "[[Film/BlazingSaddles Uh, Libby, I don't think they need no stinkin' badges.]]"
** [[Series/DoctorWho Jimmy's Blue Time Traveling Telephone Booth,]] anyone?
** Cindy's entire character could be a shout out to June from ''WesternAnimation/KaBlam'' Let's see, bossy 10-11 year old girl with a ponytail, crush on the main boy... Or [[WesternAnimation/HeyArnold Helga]].
** "The N Men", particularly Retroville's reaction, is similar to the Franchise/XMen. Not just that, but Cindy, Sheen, Libby and Carl's powers are similar to ComicBook/{{Supergirl}}, ComicBook/TheFlash, [[Franchise/FantasticFour The Invisible Woman]] and [[Franchise/XMen Banshee]], well if Banshee was [[{{Gasshole}} burping]] instead of screaming. Carl's costume is also a shout out to ComicBook/PlasticMan. Jimmy was well, orange...[[spoiler: right until he turned into ComicBook/TheHulk with a skin design similar to [[Franchise/FantasticFour The Thing]]]]. And, think of Sheen's name idea. The [[ComicBook/FantasticFour Fantastic]] [[ComicBook/JusticeLeague League of Justice Bringing]] [[ComicBook/TheAvengers Avenging]] Men (and two girls!)
*** Jimmy/Hulk's fight against the Army tanks plays out almost identical to [[{{Film/Hulk}} the 2003 ''Hulk'' movie]].
** Jimmy in ''Hall Monster'' is like a condensed version of ''Literature/NineteenEightyFour''
** Sheen's full name seems to be a ShoutOut to actors (and brothers) Creator/CharlieSheen and Emilio Estevez.
--->Sheen: (As he and his friends ride down a ''T. rex'''s tail) [[WesternAnimation/TheFlintstones Yabba Dabba Dooooo~!]]
** One ride seen at Retroville in the movie has the name "[[Music/MeatLoaf Bat Out of]] [[GoshDangItToHeck Heck]]".
** Mr. Neutron's full name is [[LeaveItToBeaver Hubert Beaumont]] Neutron.
** "Crouching Tiger, Hidden Sheen" has a definite air of ''Film/KungPowEnterTheFist''.
** In the HalloweenEpisode, Jimmy builds a machine that turns people into monsters. One of the monsters pictured is Music/MichaelJackson (specifically, werewolf Jackson from the ''Thriller'' video).
*** In addition, when naming off monsters that Carl could turn into, Jimmy mentions Frankenstein. Sheen pipes in with a [[Film/YoungFrankenstein "FRAHNK-en-steen".]]
*** Cindy dressed up as [[Series/BuffyTheVampireSlayer Muffy the Vampire Annihilator]] for Halloween.
*** When Carl and Sheen guess what Jimmy will dress up as, Carl suggests "[[Creator/StephenHawking that smart guy with the keyboard who talks with a computer voice]]".
** Leppy the ''Leptictidium'' shares a color scheme with the ''Leptictidium'' from ''Series/WalkingWithBeasts''. Incidentally, this program's first scene also showed it [[AnachronismStew erroneously living in the Cretaceous]].
** One of Hugh's friends is named VideoGame/MaxPayne.
** Upon gaining superpowers, the Wheezer family replicate the canyon-jumping sequence seen in ''{{Film/Hulk}}''. Apparently, [[CriticalDissonance some people did enjoy this movie after all]].
** The episode where they go inside the UltraLord Videogame, has a interesting shout-out to "The Wizard and the Princess" [[note]] a largely forgotten Sierra Adventure game, which is the spiritual prequel to KingsQuestV, and is even considered by many as "Kings Quest Zero" [[/note]] As the game had a infuriating puzzle, in which you had to traverse a desert find a rock, but it has to be a certain screen, or else a snake underneath would kill you.
** The TV Show "Intergalactic Showdown" in "Win Lose or Kaboom!" shares many similarities to game shows such as ''Series/FearFactor'', ''Survivor'', and ''Series/WhoWantsToBeAMillionaire". Also many of the alien TV shows Hugh watches are parodies, such as [[Series/BeverlyHills90210 Andromeda 90210]].
** In one episode, Jimmy had a robot duplicate of himself, which broke down causing its face to droop and sag like David in ''Film/AIArtificialIntelligence''.
** Dr. Moist's algaemen are named "Nipsey" and "Russell", after the famous comedian and frequent ''Series/{{Pyramid}}'' guest.
** In "The Incredible Shrinking Town," Jimmy recalls events of the week where his size was insulted. The montage is scored by a sound-alike of Randy Newman's "Short People."
** In "LEague of Villains", the leitmotiff of the titular organization bears an uncanny resemblance to John Williams's "Imperial March".
* ShowWithinAShow: [=''UltraLord''=] -- Sheen is crazy over it to the point of claiming that Ultralord fills George Washington's role as the father of America.
* SixStudentClique: With 5 students
** The main character: Jimmy
** The Muscle: Sheen
** The Quirk: Carl
** The Pretty One/The Smart One: Cindy
** The Wild One: Libby
*** Alternatively
** The Head/The Smart One: Jimmy
** The Muscle: Cindy
** The Pretty One/ The Wild One: Libby
** The Quirk: Sheen and Carl
* SlapSlapKiss: Jimmy and Cindy.
* SpaceDoesNotWorkThatWay: {{Lampshaded|Trope}} when Sheen asks Jimmy [[BatmanCanBreatheInSpace how they could survive in space without spacesuits]] or [[SciFiWritersHaveNoSenseOfScale how they can get to the moon in mere minutes]], but [[HandWave Carl's singing blocks out Jimmy's answers]].
* SpaceWhaleAesop: The pilot episode, "When Pants Attack", has one: Always remember to be responsible and clean up after yourself, because if you don't, those pants that you forgot to pick up off your floor might become sentient and go on a mad rampage.
* SpecialEditionThemeSong: The Music/BowlingForSoup theme used in TheMovie.
* SpinOff: ''WesternAnimation/PlanetSheen''. Guess who's the star?
* SprayingDrinkFromNose: Jimmy successfully attempts by accidental BananaPeel to make Cindy and Libby laugh until the smoothie come out of their noses as an experiment for his time-powered remote control when previous attempts by Sheen and Carl fail to do so. When Jimmy's dad gets hold of the remote control, he continues to unintentionally time-torture Cindy and Libby until the get a brain freeze.
* StacysMom: A RunningGag is Carl Wheezer having a crush on Jimmy Neutron's mother Judy.
* StandInParents: Cindy Vortex had an aunt stand in for her mother at Retroville's parent/child sporting day in "Maximum Hugh".
* StrongFamilyResemblance: Played straight with some characters, averted with others.
** Carl looks like a 20-odd year younger version of his dad and Libby, too, bears an obvious resemblance to her mother.
** There's no doubt about Hugh Neutron being Jimmys dad, although Judy Neutron's traits are also visible in her son.
** Sheen's father, on the other hand, has a discernibly darked skin tone than Sheen, suggesting that his mother, whom we never see in the show, is of pure European ancestry. Then we have Cindy who didn't even inherit either of her parents' hair color.
* SuddenlyShouting: Cindy
--> '''Cindy''': Uh, Excuse me, Neutron. Now that you're done talking to yourself...'''WE HAVE A SITUATION HERE!!!'''
* SuperheroEpisode: "The N-Men".
* SuspiciouslySpecificDenial:
-->'''Sheen:''' Don't do it Jimmy. Don't tell him about the limitless power-source you found on Mar-''(Jimmy covers his mouth)''\\
'''Carl:''' And we're not going there to get the limitless power-source if that's what your thinking- ''(Jimmy covers his mouth)''\\
'''Sheen:''' MARS! ''(beat)'' Sorry I just get excited.
* StalkerWithACrush: Carl toward Jimmy's mom. It's shown in several episodes that he has a picture of her and Hugh. Hugh's face is obscured by Carl's taped over it. Cindy comes off like this to Jimmy In Season 3. [[spoiler: She and Jimmy do get together in the Finale.]]
* SubbingForSanta: "Holly Jolly Jimmy" plays out exactly the way you saw coming.
* TakingYouWithMe: [[spoiler:After being defeated, Evil Jimmy breaks the dark matter chip he used to create his evil copy of Earth, causing the entire planet to be sucked into the the dark matter dimension in an attack to take Jimmy down with him.]]
* TimeMachine: Jimmy's Time Booth.
* TimeTravel: Some episodes involve use of a time machine in some capacity.
** "The Big Pinch" has Jimmy use his time machine to bring Thomas Edison into the present in order to settle an argument with Cindy on when the radio was invented.
** "Time is Money" had Jimmy go back to a time before his parents got married to convince his future father to invest 50 dollars in Hank [=McSpanky=]'s burger scheme to change history so that Jimmy's family would be wealthy enough to afford a set of encyclopedias he wanted. He goes back to set things right after finding his parents to be snobby and neglectful towards him because of the altered timeline.
** "Sorry, Wrong Era" has Jimmy, Carl, and Sheen sent back to the Cretaceous Period because of Hugh meddling with Jimmy's time replay remote.
* TheFullNameAdventures: The show's title is ''The Adventures of Jimmy Neutron: Boy Genius''.
* TheScottishTrope: In the episode "[[OutDamnedSpot Out, Darn Spotlight]]", bad things would happen whenever someone in the play said [[spoiler: Theatre/{{Macbeth}}]]
* TheVoiceless: Despite appearing fairly often (mostly as a background character with little to no impact on the story though), Mr. Vortex, Cindy's father, never utters a single syllable throughout the entire show. His brief cameo in [[WesternAnimation/JimmyNeutronBoyGenius the movie]] is just as speechless, thus making him the only parent of the main gang to never get a line of dialogue in spite of making an actual appearance.
* TooLongDidntDub: The CCTV Mainland Chinese version of the show [[BannedInChina omits a few lines of dialogue]]:
** In "Party at Neutron's" Sheen and Cindy's exchange following her [[BlatantLies claiming she can't imagine anyone wanting to dance with Jimmy]] is cut, possibly because the translator didn't have a clue how to convey Sheen's Macbethian reference in Chinese.
* TotemPoleTrench: Seen in "The Phantom of Retroland," when Cindy and Libby dress up as the titular Phantom to scare Jimmy and his friends (Libby on top and wearing the mask, and Cindy on bottom.)
* TropeyComeHome: The storybook ''Goddard Come Home!''
%%* {{Tsundere}}: Cindy.
* UglyGuyHotWife: Hugh and Judy, though Hugh's just a moron, and Carl and Elkie, though it's just a one episode fling, and then there's The Junkman and Beautiful Gorgeous.
* UndeadAuthor: Jimmy points out the difficulties with this in "The Phantom of Retroland", asking how anyone would know the Phantom's victim's last words if no one was there to hear them.
* UnderdogsNeverLose: [[AvertedTrope Averted]] 100% in "Retroville 9". Jimmy and his class qualify for the Junior World Baseball Championships in Nagoia, Japan. The rest of the kids don't know, however, that the only reason why they ever managed to win a game of baseball is because of the technological advances Jimmy applied to their bats and gloves. Right before the BigGame starts, Jimmy's conscience is aroused by "Tremendous Jackson's" (an obvious spoof of Bo Jackson) opening speech, in which he expresses pride over the fact that Jimmy's class qualified fair and square, without resorting to any technological tricks. And so, he proceeds to tell the others the truth as well as to encourage them to try and win the game clean. They all go out on the pitch full of zeal... only to end up having their butts handed to them without scoring a single point. That's just how cruel that show is.
* UnEvilLaugh: Eustace Strych and Beautiful Gorgeous. Sheen lampshades the latter.
-->'''Sheen''': That laugh could get annoying.
* UnnamedParent: Except Hugh and Judy, all the other kid's parents are either unnamed, or just AllThereInTheManual.
* TheUnreveal: Beautiful Gorgeous brings up several times in "Operation: Rescue Jet Fusion" that she didn't want to be a villain, but she never gets a chance to say what it is she always wanted to be.
* UnresolvedSexualTension: Jimmy and Cindy, which slowly developed into a real romance.
* VillainTeamUp: The League of Villains consists of King Goobot, Finbarr Calamitous, Beautiful Gorgeous, evil genius Eddie, the Junkman, Eustace Strych, Grandma Taters and the Space Bandits.
* WalkIntoCameraObstruction:
** "Grumpy Young Men" with Jimmy when he is quickly dragged to his lab by Carl and Sheen
** "Nightmare in Retroville" with Sheen in his werewolf form, when he leads the other monsters on a rampage through town, his nose obscures the screen.
** "Lights! Camera! Danger!" with Quentin Smithee when he is about to start the next scene the "Save the Day" song.
** "The League of Villans" Where T grabs Jimmy and Sheen in the courtroom; hands fill the screen.
** "Professor Calamitous, I Presume" Calamitus in the robot suit attempts to kidnap Goddard
* WalkThroughTheCamera:
** "The Eggpire Strikes Back", the scene at school where Ooblar tries to break up Jimmy and Cindy's argument. "Pipe down!" And where Jimmy and Goddard run to the park where Poultra's egg is.
** "Professor Calamitous, I Presume", with Calamitus in the robot suit walking to Jimmy's house.
* WhatHappenedToTheMouse: The concept of Jimmy being extremely secretive about his lab, never allowing anyone inside except Goddard, Carl and Sheen is somewhat relevant in the first season, especially "The Egg-Pire Strikes Back" special, where he goes as far as to wipe Cindy's memories of how to get in (using a device that, appropriately enough, will never be referenced to again throughout the rest of the show). Later on, it seems like everybody can and will enter the lab whenever they please (or plot convenience will require them to) and while Jimmy will ocassionaly express his dismay at the idea of Cindy or Libby hanging around his inventions (due to them being [[GirlsHaveCooties girls and all]]), other times he'll just have them stay behind a yellow line on the floor, and some other times he just won't care at all.
* WhatTheHellIsThatAccent: Apparently, Bolbi is from "[[FictionalCountry Backhairistan]]". But his accent lacks a true real-world parallel.
* WhereTheHellIsSpringfield:
** Averted - Retroville is in Texas.
** This is also played with in one of the episodes where Jimmy states that his script for a movie has one of the locations in 'a fictional city in Texas'. Although, in the first episode Cindy mentions that Jimmy's head is the size of Texas, to which Carl, upset, replies that his uncle is from Texas, and not that they live in Texas.
** The company who does the animation on the series is itself based in Dallas.
* YellowSashOfPower: Jimmy in "Hall Monster".
* YouNoTakeCandle: Elke, Carl's pen pal from Sweden, suffers from this trope ({{Polandball}} variety):
--> '''Elke''' (while riding Jimmy's rocket through an asteroid belt with Carl): "Carl! Is too fast! Make with the slowing down!"
** Rather ironic (and possibly the result of CulturalBlending) considering that Swedish people are known throughout the world for their impeccable grasp of English with little to no foreign accent or grammatical slips to betray their origins.
* YourHeadAsplode: Almost happens to Sheen when Jimmy decides to increase his intelligence by [[MyBrainIsBig growing his brain]].
* YouthfulFreckles: Libby gained some in season 2 after her redesign.
[[/folder]]
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