History WebAnimation / TeamTeenCartoonHeroesUnite

* DemographicDissonantCrossover: Most of the characters in this series come from family-friendly kids' cartoons... with the exception [[WesternAnimation/RickAndMorty Rick Sanchez and Morty Smith]].

* AlternateTimeline: It's revealed in ''The Meeting'' that the main Aku virus originated from one. Aku ''did'' exist in the main Team Teen universe in Ancient Japan, but Jack killed him before he could send him into the future.

* AloofAlly: Ben is this on Team Teen since he expects his partnership with them to be a one-time gig and personally, he doesn't want to outshine them. Sonic convinces him to give a chance since despite being the WorldsStrongestMan, he would need some back-up to cover some of his flaws.

* LaResistance: In ''The Meeting'', [[WesternAnimation/KimPossible Wade]] reveals that [[WesternAnimation/{{Cars}} Lightning McQueen]], [[WesternAnimation/BlazeAndTheMonsterMachines A.J and Blaze]] are part of a growing alliance to combat the spread of Aku's virus.

* SeenItAll: When Sonic reveals that [[WesternAnimation/{{Turbo}} Turbo]] is from Ben's world, Ben isn't totally surprised, admitting seeing weirder stuff than a super snail.

* LaResistance: In ''The Meeting'', [[WesternAnimation/KimPossible Wade]] reveals that [[WesternAnimation/{{Cars}} Lightning McQueen]], [[WesternAnimation/BlazeAndTheMonsterMachines A.J and Blaze]] are part of a growing alliance to combat the spread Aku's virus.

* PocketDimension: The world of ''Toys/EverAfterHigh'' is one of the books belonging to [[WesternAnimation/ThePagemaster the Pagemaster]].

* LaResistance: In ''The Meeting'', [[WesternAnimation/KimPossible Wade]] reveals that [[WesternAnimation/Cars Lightning McQueen]], [[WesternAnimation/BlazeAndTheMonsterMachines A.J and Blaze]] are part of a growing alliance to combat the spread Aku's virus.

* MagicIsAMonsterMagnet: As stated by Tamatoa, the "Black Ink" (a.k.a. Aku's essence), emits a call that only monsters can hear and they'll stop at nothing to obtain it.
* NoDialogueEpisode: ''Convergence at Gravity Falls'', ''Aku Takes Over The Multiverse'', and ''Kim vs. Ben'' have no dialogue spoken by the characters (not counting the "Last time on" intros in ''Aku Takes Over The Multiverse'').
* NotQuiteDead: As surmised by Rick, restoring Stan's memories allowed Bill to reform himself, but not completely as he was still shattered into pieces by Stan's punch. Bill notes that Stan would have died before he found all of his pieces and would have resigned to this fate if it weren't for Aku reviving him.

* AlternateTimeline: It's revealed in ''The Meeting'' that the main Aku virus originated from one. Aku ''did'' exist in the main Team Teen universe in Ancient Japan, but Jack killed before he could send him into the future.

* NoDialogueEpisode: ''Convergence at Gravity Falls'', ''Aku Takes Over The Multiverse'', and ''Kim vs. Ben'' have no dialogue spoken by the characters (not counting the "Last time on" intros in ''Aku Takes Over The Multiverse''.

* GreaterScopeVillain: [[WesternAnimation/SamuraiJack Aku]]. His sending his fragments throughout the multiverse is the cause of our heroes' current troubles, including the resurrection of [[WesternAnimation/GravityFalls Bill Cipher]].

* TheFriendNobodyLikes: Not surprisingly, [[WesternAnimation/RickAndMorty Rick]] isn't exactly well liked by the vast majority of the other characters, whether it's because of his status as a galaxy-wide criminal or just his [[{{Jerkass}} general jackassery]]. Even [[WesternAnimation/GravityFalls Ford]], the one who seems to tolerate Rick the most, is vexed by his tendency to not treat multiversal threats, such as Aku, seriously.

* BothSidesHaveAPoint: Ford chews out Rick for not better securing the Aku fragment which leads to its escape and Bill Cipher getting revived. On the other hand, Rick does make a good case about wanting to deal with another Aku fragment at Beach City first to study it and find a permanent solution to destroy the demon.

* AmbiguousSituation: It's not clear if the [[WesternAnimation/RickAndMorty Rick and Morty]] we see in this series are either native to the SharedUniverse of Team Teen or if they just moved from another reality altogether. Given that this is [[AlternateSelf Rick and]] [[DimensionalTraveler Morty]] we're talking about, it's hard tell.

* AmbiguousSituation: It's not clear if the [[WesternAnimation/RickAndMorty Rick and Morty]] we see in this series are either native to the SharedUniverse of Team Teen or if they just moved from another reality altogether. Given that this is [[AlternateSelf Rick and]] [[DimensionalTraveler Morty]] were talking about, it's hard tell.

* AmbiguousSituation: It's not clear if the [[WesternAnimation/RickAndMorty Rick and Morty]] we see in this series are either native to the SharedUniverse of Team Teen or if they just moved from another reality altogether. Given that this is [[AlternateSelf Rick and]] [[DimensionTraveler Morty]] were talking about, it's hard tell.

* AmbiguousSituation: It's not clear if the [[WesternAnimation/RickAndMorty Rick and Morty]] we see in this series are either native to the SharedUniverse of Team Teen or if they just moved from another reality altogether. Given that this is [[AlternateSelf Rick and]] [[DimensionHopper Morty]] were talking about, it's hard tell.

** In ''The Rematch'', Mabel reveals that the events of "Convergence at Gravity Falls" takes place before Weirdmageddon.