History ComicBook / TeenageMutantNinjaTurtlesIDW

** With ''ComicBook/MightyMorphinPowerRangersBoomStudios'' in ''ComicBook/MightyMorphinPowerRangersTeenageMutantNinjaTurtles''.

** Issue #136 shows Ch'rell having made a Triceraton his new outer body. This refers to the unused concept of the "TriShreddatron" which was supposed to debut in an unproduced episode of the seventh season but got scrapped because they decided to put an end to ''Fast Forward'' and make the seventh and final season about the Turtles returning to their own time in ''Back To The Sewers''.

** Lucia Rosetti in the ''Jennika'' side story at first plays the innocent loving mother to convince Jennika to bring her son to her but turns out to be just as abusive as the mobsters holding him hostage...both sides simply want the heir apparent to the Rosetti mafia family under their control.

* WarArc: ''The Armageddon Game'', which concerns Rat King deciding to start his own version of the apocalypse in New York City by recruiting other villains, with the Hamato Clan countering him by gathering allies and even enemies to stop him.

** Heck, the entire Mutant Town arc itself, from certain characters to the basic idea of a mutant-dominant society, is one giant reference to the 1980s Palladium TMNT RPG 'After the Bomb'. Thats even the name of Mutant Town's only nightclub.

* TeethClenchedTeamwork: Any time the turtles are forced to work with Old Hob/ The Mutanimals due to Hob's nasty personality and dubious ethics. There was also that time the turtles had to temporarily work with the Foot Clan against [[spoiler: The Technodrome]]

* TrademarkFavoriteFood: Pizza natch, though Mikey seems to like it the most. Leonardo notes that he gets tired of having it all the time, though it's better than Splinter's cooking.

* VillainTeamUp: Averted when Shredder tried to reforge his alliance with General Krang by ruling Earth together; Krang flatly refuses on the basis that he never trusted Shredder, he already has the technology and power to annihilate Earth's military forces, and lastly he has no intention of sparing a single human when he has the Technodrome in his possession.

* BitchInSheepsClothing: Alopex initially appears to be a timid DamselInDistress on the run from whoever created her. But Raphael quickly deduces that she's actually playing the sympathy card to try and infiltrate the turtles, at which point she reveals herself to be one of the Shredder's deadliest and loyal minions.
** [[spoiler: Subverted eventually, where it's revealed that she's only been loyal to Shredder all that time so she can get close enough to kill him. And not because she's TheStarscream, but because [[YouKilledMyFather he butchered her old pack]] [[YouCantGoHomeAgain to leave her with nothing but the Foot Clan.]]]]

* NonMammalMammaries: Averted with Koya, Shredder's mutant falcon of an assassin. Her upper half shows no visible signs of the usual feminine attributes. Seemingly also averted by Zodi, although her pouch-covered chest makes it a little hard to see.

* HeelFaceTurn: Some characters start off as bad guys but end up becoming full-time good guys (such as Alopex and Slash), or at the very least anti-heroes or simply not exactly heroes but not villains anymore (such as Old Hob and Foot member Jenika).

* ShoutOut: Various gags and references to other works are strewn throughout the series, such as [[Series/BreakingBad Walter White]] showing up in a crowd scene in issue #27.

* GambitPileup: The City at War storyline, leading up to issue 100, has all of the active factions clash together. Karai attempts to take over the Foot by force, Splinter attempts to fight back, the Mutanimals stage a raid on Null, Bishop attempts to kill the Turtles once and for all, and he allies himself with Metalhead who specifically wants Donatello dead. Meanwhile, most of the Turtles are just [[spoiler:trying to save Jennika's life after she is critically wounded by Karai.]] All over the course of one night.

* AdaptationSpeciesChange: The Triceratons, while still humanoid dinosaurs, are now genetically-enhanced Earthly Triceratops rather than an alien species.

* CompositeCharacter: Krang now is an Utrom and a more serious villain like Ch'rell from the [[Creator/FourKidsEntertainment 4Kids Entertainment]] [[WesternAnimation/TeenageMutantNinjaTurtles2003 show]].

** Bebop and Rocksteady are pretty chill guys who, unless you tick them off, for the most part just want to hang out and have fun. It's just that their idea of "fun" is incredibly destructive.

* AbusiveParent: Casey Jones' father, Arnold Jones.

** [[spoiler: Subverted eventually, where it's revealed that she's only been loyal to Shredder all that time so she can get close enough to kill him. And not because she's TheStarscream, but because [[YouKilledMyFather he butchered her old pack]] [[YouCantGoHomeAgain to leave her with nothing but the FootClan.]]]]

** [[spoiler:Leatherhead]] who at first seems like a good-natured if slightly self centered individual but [[spoiler:murders several utroms in stasis before nearly killing Fugitoid and tries to kill the turtles when found out,]] as opposed to the [[UnstoppableRage usually]] calm scientist he was in the 4Kids version, or the ReluctantPsycho who still fights on the side of good in 2012 version.

* TroubledButCute: Casey, perhaps moreso than any other adaptation.

* CanonImmigrant: A version of Venus created by Sophie Campbell and artist Pablo Tunica

* MadScientist: Aside from Baxter Stockman, Harold Lillja.

* {{Crossover}}: With IDW's version of the ComicBook/{{Ghostbusters}}, [[ComicBook/BatmanTeenageMutantNinjaTurtles Batman]] and [[ComicBook/MightyMorphinPowerRangersBoomStudios the Power Rangers]] in separate miniseries.

* FantasticFoxes: Alopex is a mutant Arctic fox. And Kitsune is, well...[[ExactlyWhatItSaysOnTheTin exactly what her name implies]], a {{kitsune}}.