History VideoGame / NickelodeonKartRacers

** In a spiritual sense, Ickis and Plankton (AKA the Mystery Rider) go from playable characters in the original ''Nicktoons Racing'' to Pit Crew members in ''Slime Speedway''.

** In a spiritual sense, Ickis goes from a playable character in the original ''Nicktoons Racing'' to a Pit Crew member in ''Slime Speedway''.

* DemotedToExtra: After being playable in ''Grand Prix'', Shredder appears in ''Slime Speedway'' as a Turbo Edition-exclusive Pit Crew member, and Angelica and Heffer as Pit Crew members anyone can use. Tommy, on the other hand, is completely absent without explanation.

* AndYourRewardIsClothes: ''Slime Speedway'' features alternate costumes for various characters, such as Reptar's purple counterpart from the original ''WesternAnimation/{{Rugrats}}'' series and Raphael's design from the [[ComicBook/TeenageMutantNinjaTurtles Mirage comics]].

* {{Atlantis}}: The ''Franchise/SpongeBobSquarePants'' incarnation from the episode [[Recap/SpongeBobSquarePantsS5E12AtlantisSquarePantis "Atlantis SquarePantis"]].

* BlindDriving: ''Slime Speedway'' features [[WesternAnimation/AvatarTheLastAirbender Toph Beifong]] - a blind earthbender who 'sees' by sensing vibrations in the ground with her feet - as a playable driver. Exactly how she drives when her feet aren't touching the ground goes completely unexplained.
* BottomlessPitRescueService: Drivers who go off the track get wrapped in a bubble and floated back up.

* EnemyMine: Since several villains appear as Pit Crew members, you can invoke the trope by pairing them with their respective heroes. It's entirely possible to pair Plankton, the Dirty Bubble or the Flying Dutchman with [=SpongeBob=] and his friends, Fire Lord Ozai with Aang, Toph or Zuko, Dib or Gaz with Zim or GIR, and Vlad Plasmius or Skulker with Danny Phantom, for example.

** Jimmy Neutron races alongside his main academic {{rival}}, Cindy Vortex, in ''Slime Speedway''.
* GravityScrew: ''Slime Speedway'' features slime slide sections that defy gravity by frequently looping and going upside down before launching you back onto the track.

* GuideDangIt: Unlike ''Grand Prix'', ''Slime Speedway'' doesn't provide hints on how to unlock any of the characters, kart parts or crew members. While most of the unlockables are available through the garage, some aren't, like the secret racers Cindy, Helga, Donatello and Raphael.

* JustifiedTutorial: The tutorial for ''Slime Speedway'' has the in-universe justification of it actually being [=SpongeBob=] practicing for his boating exam, with Sandy, Squidward and Patrick all piping in to offer advice.

* MacroZone: House of WesternAnimation/CatDog has you race around CatDog's house while mouse-sized. Fittingly, you actually enter Winslow's mousehole at one point.

* OneProductPlanet: [[WesternAnimation/InvaderZim Foodcourtia]], a planet entirely dedicated to serving fast food.

** Every character has a unique item exclusive to them in the vein of ''VideoGame/MarioKartDoubleDash''. Several of these items would be reworked into regular items or pit crew abilities: Patrick's rocks, Sandy's lasso, Helga's bubblegum and Raphael's sai became chief skills for Phil and Lil, the Bigheads, Plankton and Zuko/Skulker, Michelangelo's nunchucks became Sokka's boomerang and one of Donatello's gadgets (the shield) became the ghost shield.

** Every character has a unique item exclusive to them. The increased roster size in later games made this much harder to maintain, so it was left out altogether. Several of these items would be reworked into other items or pit crew abilities: Patrick's rocks, Sandy's lasso, Helga's bubblegum and Raphael's sai became chief skills for Phil and Lil, the Bigheads, Plankton and Zuko/Skulker, Michelangelo's nunchucks became Sokka's boomerang and one of Donatello's gadgets (the shield) became the ghost shield.

** Several items from the first game were originally locked to specific characters in the vein of ''VideoGame/MarioKartDoubleDash''. Some of these items would become regular items in later entries.

* PalmtreePanic: [[WesternAnimation/SpongeBobSquarePants Goo Lagoon]] is already underwater, but definitely qualifies given that it is a tropical beach. [[WesternAnimation/SpongeBobSquarePants Hawaii]] in the third game also qualifies.

* TropicalIslandAdventure: [[WesternAnimation/HeyArnold San Lorenzo]] features a jungle, native structures and BottomlessPits of running lava. Ditto [[WesternAnimation/SpongeBobSquarePants Hawaii]].

* UnderTheSea: Naturally, the ''WesternAnimation/SpongeBobSquarePants''-themed tracks all take place underwater (with the exception of Hawaii, which takes place on a tropical island).

* ShiftingSandLand: [[WesternAnimation/TeenageMutantNinjaTurtles2012 Mutagen Wasteland]] is a [[AfterTheEnd post-apocalyptic]] desert with incomplete roads and BottomlessPits.

* AbsurdlySpaciousSewer: Some of the ''WesternAnimation/TeenageMutantNinjaTurtles2012''-themed tracks take place in the sewers.
* AcidTripDimension: ''Slime Speedway'' has "Black Hole", based off the ''WesternAnimation/TheRenAndStimpyShow'' episode of the same name. After a short drive through space itself, racers enter the titular black hole and have to contend with flying toasters, balls and mountains of left socks.
* AmusementPark: The "Glove Universe" track takes place in the Glove Universe theme park from the ''WesternAnimation/SpongeBobSquarePants'' episode, "[[Recap/SpongeBobSquarePantsS8E20FaceFreezeGloveWorldRIP Glove World R.I.P.]]". In ''Slime Speedway'', the Goop Zone track takes place in the Wizzly World theme park from the ''WesternAnimation/MyLifeAsATeenageRobot'' episode "[[Recap/MyLifeAsATeenageRobotS1E13 The Wonderful World of Wizzly]]".

* BigBoosHaunt: Most Haunted Tour is a big creepy house with pumpkins, skulls and scythes in your way. Subverted in that it's not really haunted, just a set location for ''WesternAnimation/TheLoudHouse'''s in-universe TV Show ''ARGGH!''.

* TheCameo: Several supporting characters appear in the background of their series' tracks:

* ComebackMechanic: Drivers on the back receive better items from boxes.
* TheComputerIsACheatingBastard: Shredder's boss battle in ''Grand Prix''. First, he uses both April and Karai's chief skills, when you normally only have one chief. Second, he's completely immune to the Kraangs that spawn all over the track.

** Several items from the first game were originally locked to specific characters

* HarderThanHard: After completing all cups in Fast speed, you unlock Insane speed. The AI is faster and much more aggressive.

** [[WesternAnimation/RockosModernLife Filburt]] and Bow Bow's chief skill in ''Grand Prix'' also protect your character.

** ''Slime Speedway'' brings back numerous tracks from the second game and reworks them with new water and slime slide sections.

* PaletteSwap: ''Slime Speedway'' features two: Purple Reptar (Reptar with purple scales and orange spikes) and Eastman and Laird Raphael (a black-and-white version of Raphael based off the ''Mirage'' comics, exclusive to the ''Turbo'' edition). Both recolors are treated as separate characters and [[MovesetClone have the same stats]] as the originals.
* PalmtreePanic: [[WesternAnimation/SpongeBobSquarePants Goo Lagoon]] is already underwater, but definitely qualifies.
* PhantomZone: [[WesternAnimation/DannyPhantom The Ghost Zone]].

* SharkTunnel: A section of [[WesternAnimation/SpongeBobSquarePants Goo Lagoon]] takes place under the titular lagoon, with the raceline covered by glass.

* TropicalIslandAdventure: [[WesternAnimation/HeyArnold San Lorenzo]] features jungle, native structures and BottomlessPits of running lava.

* UnderTheSea: The ''WesternAnimation/SpongeBobSquarePants''-themed tracks all take place underwater.

** Every character has a unique item exclusive to them. The increased roster size in later games made this much harder to maintain, so it was left out altogether. Several of these items would be reworked into other items or pit crew abilities: Patrick's rocks, Sandy's lasso, Helga's bubblegum and Raph's sai became chief skills for Phil and Lil, the Bigheads, Plankton and Zuko/Skulker. Mikey's nunchucks became Sokka's boomerang.

** There is no Pit Crew system, unlike the later games.

** Every character has a unique item exclusive to them. The increased roster size in later games made this much harder to maintain, so it was left out altogether.

** Tommy's ball functioned completely differently in the first game: it was exclusive to Tommy and homed in on the racer in first place. In the following games, it can be used by anyone, fires in a straight line with the ability to bounce off walls and sometimes comes in sets of three, akin to the green shell from ''VideoGame/MarioKart''.

* EdibleAmmunition: The first game had explosive acorns and InterfaceScrew pizza as Sandy and Michelangelo's respective special items.

** The karts were much larger and bulkier. In later games, they are much smaller and stylized.

* ArtEvolution: There is a [[https://images-wixmp-ed30a86b8c4ca887773594c2.wixmp.com/f/c1726e12-db91-4d6e-9233-b32bb1abc0c4/de22vu4-4536b6de-cb03-4548-a275-c6adadabb6f5.jpg?token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJ1cm46YXBwOiIsImlzcyI6InVybjphcHA6Iiwib2JqIjpbW3sicGF0aCI6IlwvZlwvYzE3MjZlMTItZGI5MS00ZDZlLTkyMzMtYjMyYmIxYWJjMGM0XC9kZTIydnU0LTQ1MzZiNmRlLWNiMDMtNDU0OC1hMjc1LWM2YWRhZGFiYjZmNS5qcGcifV1dLCJhdWQiOlsidXJuOnNlcnZpY2U6ZmlsZS5kb3dubG9hZCJdfQ.C_5fkHrPKmuR_edqil-z44zDG_i404UQmHMFWlnOs_0 big gap visually]] from the original to ''Grand Prix''. Each character has more detailed textures (especially noticeable on characters like [=SpongeBob=] [who has defined pores] and the TMNT characters [who now have visible wear-and-tear on their accessories]) and appear to be more energetically animated compared to the first game. The vehicles are smaller, more stylized, and possess a logo on the back unique to each character's series (i.e. ''[=SpongeBob=]'' characters have a jellyfish while ''Hey Arnold'' characters have Arnold's cap).

* JungleJapes: [[WesternAnimation/Hey Arnold San Lorenzo Cruise]] is set in and around a dense jungle, complete with temples and ruins to drive through.

* AmusementPark: The "Glove Universe" track takes place in the Glove Universe theme park from the ''WesternAnimation/SpongeBobSquarePants'' episode, "[[Recap/SpongeBobSquarePantsS8E20FaceFreezeGloveWorldRIP Glove World R.I.P.]]"

* CaveBehindTheFalls: Nature-O-Rama has blind jump into a slime waterfall. Unsurprisingly, it ends up leading up to a cave.

* TheComputerIsACheatingBastard: Shredder's boss battle. First, he uses both April and Karai's chief skills, when you normally only have one chief. Second, he's completely immune to the Kraangs that spawn all over the track.

* DemotedToExtra: After being playable in ''Grand Prix'', Shredder appears in ''Slime Speedway'' as a Turbo Edition-exclusive Pit Crew member, and Angelica and Heffer as Pit Crew members anyone can use.

* EdibleAmmunition: The first game had explosive acorns and InterfaceScrew pizza.
* EnemyMine: Since several villains appear as Pit Crew members, you can invoke the trope by pairing them with their respective heroes. It's entirely possible to pair Plankton, the Dirty Bubble or the Flying Dutchman with [=SpongeBob=] and his friends, Fire Lord Ozai with Aang, Toph or Zuko, Dib or Gaz with Zim or GIR, and Vlad Plasmius or Skulker with Danny Phantom.

* {{Fireballs}}: Reptar's special item in the original.

* FragileSpeedster: [[WesternAnimation/RenAndStimpy Powdered Toast Man]]'s chief skill gives you a long boost, but if you get hit or touch anything during that time, you explode and lose the advantage. It's also available as a rare random item, where it causes every racer on the track to boost uncontrollably for the duration of the effect.

** ''Grand Prix'' and ''Slime Speedway'' feature real-life celebrity [=JoJo=] Siwa as a playable racer. In both instances, she's the only character who doesn't come from an animated show.
** The ''Franchise/TeenageMutantNinjaTurtles'' characters are a unique variation on the trope; the Nickelodeon-made ''WesternAnimation/TeenageMutantNinjaTurtles2012'' incarnations are playable in the first two games, but ''Slime Speedway'' instead uses the versions from the 1987 series despite said series predating the franchise's acquisition by Nickelodeon.

* HoistByHisOwnPetard: When thrown forward, you can drive over your own log and it will hit you.

** Footballs, Leo's shurikens and Donnie's bombs in the original.

* InterfaceScrew: Pizza covers an opponent's screen. [=SpongeBob=]'s jellyfish covers all of them.

** The sewer lid and Donnie's shield protect you from everything for a short time.

* KidsDrivingCars: Considering the source materials, many of these characters shouldn't be driving at all. Special mention of Tommy, who is only one year old.

** Zuko, Toph, Powdered Toast Man and Susie make the jump from non-playable pit crew members in ''Grand Prix'' to fully playable racers in ''Slime Speedway''.
** Subverted with April O'Neil: Her 2012 self was a Pit Crew member in ''Grand Prix'', but it's her '87 self that's playable in ''Slime Speedway''.

* SlippySlideyIceWorld: [[WesternAnimation/AvatarTheLastAirbender Northern Water Tribe]] and [[WesternAnimation/RenAndStimpy Kilted Yaksmen Raceway]] are both snowy places with slippery ice sections that make it hard to control your steering.

* SpaceZone: [[WesternAnimation/RenAndStimpy Space Madness]].

* SuddenlyVoiced: The third game now has voice acting.

* ToyTime: Some of the ''WesternAnimation/{{Rugrats}}''-themed tracks take place in the Toy Palace from [[Recap/RugratsS2E1ToyPalaceSandHo the TV Series episode of the same name]].

* {{Wutai}}: [[WesternAnimation/AvatarTheLastAirbender Ba Sing Se]] and [[WesternAnimation/TheLegendOfKorra Air Temple Island]].

** [[WesternAnimation/RenAndStimpy Powdered Toast Man]] gives you a very long boost, but, during this time, crashing into anything will make you explode.

* FragileSpeedster: [[WesternAnimation/RenAndStimpy Powdered Toast Man]]'s chief skill gives you a long boost, but if you get hit or touch anything during that time, you explode and lose the advantage. It's also available

* FragileSpeedster: [[WesternAnimation/RenAndStimpy Powdered Toast Man]]'s chief skill gives you a long boost, but if you get hit or touch anything during that time, you explode and lose the advantage.

** [[WesternAnimation/AvatarTheLastAirbender Zuko]]'s chief skill in ''Grand Prix'' sets fire shooting out both sides of your vehicle, allowing you to hit nearby opponents. In ''Slime Speedway'', since Zuko is playable, [[WesternAnimation/DannyPhantom Skulker]] provides the skill instead.

** ''WesternAnimation/AaahhRealMonsters'': Oblina is playable instead of Ickis, the main protagonist.
** ''WesternAnimation/Rugrats2021'': Bizarrely, despite both characters being playable in the previous ''Kart Racers'' entries, series protagonist Tommy Pickles and VillainProtagonist Angelica Pickles (the latter of whom became a non-playable Pit Crew member and the former of whom is left out entirely) are completely absent in ''Slime Speedway'' in favor of [[NotZilla Reptar]], Chuckie and Susie.

* GimmickLevel: Some tracks in the original game are completely flooded in slime, making full use of the jet skis. They also have new rules to eliminate players either for being in last place or failing to follow the correct path.

* GuestFighter: ''Grand Prix'' and ''Slime Speedway'' feature real-life celebrity [=JoJo=] Siwa as a playable racer. In both instances, she's the only character who doesn't come from an animated show.
* GuideDangIt: Unlike ''Grand Prix'', ''Slime Speedway'' doesn't provide hints on how to unlock any of the characters, kart parts or crew members. While most of said unlockables are available through the garage, some aren't, like the secret racers Cindy, Helga, Donatello and Raphael.

* GuideDangIt: Unlike ''Grand Prix'', ''Slime Speedway'' doesn't provide any hints on how to unlock any of the characters, kart parts or crew members. While most of said unlockables are available through the garage, some aren't, like the secret racers Cindy, Helga, Donatello and Raphael.

** ''WesternAnimation/{{Rugrats}}'': Bizarrely, despite both characters being playable in the previous ''Kart Racers'' entries, series protagonist Tommy Pickles and VillainProtagonist Angelica Pickles (the latter of whom became a non-playable Pit Crew member and the former of whom is left out entirely) are completely absent in ''Slime Speedway'' in favor of [[NotZilla Reptar]], Chuckie and Susie.