History YMMV / TeenageMutantNinjaTurtlesIDW

** In ''The Armageddon Game'', Rat King completely tosses away the few shreds of [[NeutralNoLonger neutrality he has]] by [[spoiler:teaming up with various villains and plunging New York City into chaos, as the first target of his world-ending game.]]

* ArcFatigue: While generally enjoyed, the Mutant Town arc was seen by some fans as dragging on after a while, since the series shifted into a quasi-SliceOfLife format as the Turtles and their allies settled into their new situation, with no immediate movement for the MythArc in the meantime. What's more, nothing particularly significant even happened until the introduction of Dr. Barlow [[spoiler:and Venus]]. It didn't help that the entire arc purposely served as buildup for ''The Armageddon Game'', which is equally lengthy.

* ArcFatigue: While generally enjoyed, the Mutant Town arc was seen by some fans as dragging on after a while, since the series shifted into a quasi-SliceOfLife format as the Turtles and their allies settled into their new situation, with no immediate movement for the MythArc in the meantime. What's more, nothing particularly significant even happened until the introduction of Dr. Barlow [[spoiler:and Venus]]. It didn't help that the entire arc purposely served as buildup for the equally lengthy Armageddon Game arc.

* HeartwarmingInHindsight: At [[spoiler:Slash's funeral]] Old Hob mocks Michelangelo's eulogy for saying he's in a better place but given the turtles themselves are {{Reincarnation}}s and they sometimes communicate with their deceased mother it's already confirmed this universe has an afterlife.

* ArcFatigue: While generally enjoyed, the Mutant Town arc was seen by some fans as dragging on after a while, since the series shifted into a quasi-SliceOfLife format as the Turtles and their allies settled into their new situation, with no immediate movement for the MythArc in the meantime. What's more, nothing particularly significant even happened until the introduction of Dr. Barlow [[spoiler:and Venus]].

* NightmareFuel: In #23 [[spoiler: there's the sheer amount of [[MindRape mental torture]] Leonardo is put through before he winds up joining forces with the Shredder, including seeing a vision of Splinter murdering his brothers, then raising them as killer zombies.]]
** In #100, we find out that [[spoiler: Utroms are apparently parasitic organisms. And since Leatherhead ATE Krang... well... Let's just say we're not done with the General yet]].
** Issue #127 is this to the extreme. The previous issues had been building up Dr. Barlow and the mutants he treats, among them the newly debuted Groundchuck and Dirtbag [[spoiler:and Venus]], in how creepy the whole thing is with making mutants into patchwork creatures in a supposed effort to regain their humanity. This issue ups the ante considerably, especially after we find out that Barlow is attempting to create doppelgangers of the titular turtles, as Alopex sneaks deeper into Barlow's workplace and finds [[spoiler:various mutilated corpses and body parts (including decapitated heads) of mutants, then in a different room finds the results of Barlow's experiments on the doppelgangers, with several mutilated mutant turtles floating in large, liquid-filled tubes, made worse when it's not made clear if they're dead or alive]]. And to top it all off, the issue ends with our first glimpse at [[spoiler: Venus, who is another of Barlow's patchwork creatures, her limbs separated from her body, with the stumps and her eyes glowing in a very unnatural way]].
** Also from issue #127 we have Dirtbag himself. Already his redesign for the comic is plenty scary, as instead of a regular mole, here he is a naked mole rat and just the way he looks is nightmarish enough, especially as he has strange tubes coming out of his head and upper back. And then we see what happens when he enters the room [[spoiler:of mutilated corpses]] that Alopex is now hiding in. Despite the fact that Alopex is a trained ninja, Dirtbag finds her in about two seconds and attacks her, is [[NoSell completely unfazed when Alopex stabs him in the head with her sickle]] and then grabs Alopex and starts savagely biting into her tail. Alopex manages to free herself and runs away, injured and terrified, with Dirtbag silently standing in shadow on the doorway, looking like something straight out of a slasher movie.

** [[spoiler:Jennika gradually accepting her mutation and becoming the new ninja turtle would make for an interesting story line. Instead, her initial angst over her transformation only lasts for one issue before she accepts her new position as a ninja turtle without issue. It's brought up some during the arc after City Fall, along with her own miniseries, but it was still very downplayed]].

* AcceptableTargets: Gangsters. Whenever the mafia and street gangs appear, expect them to be defeated with ease by the main characters.

** In Issue #51, Darius Dun and the Street Phantoms, antagonists from the ''Fast Forward'' retool of the [[WesternAnimation/TeenageMutantNinjaTurtles2003 2003 incarnation]], are introduced. To put things into perspective, ''Fast Forward'' wasn't one of the more popular seasons of the show and even then, fans gravitated more towards Viral and the Dark Turtles as the EnsembleDarkhorse characters, not Dun or Jammerhead. As such, seeing Darius Dun and the Street Phantoms get reimagined as modern day characters for the IDW series can take one by surprise.

** In Issue #51, Darius Dun and the Street Phantoms, antagonists from the ''Fast Forward'' retool of the [[WesternAnimation/TeenageMutantNinjaTurtles2003 2003 incarnation]], are introduced.

* ArcFatigue: While generally enjoyed, the Mutant Town arc was seen by some fans as dragging on after a while, since the series shifted into a quasi-SliceOfLife format as the Turtles and their allies settled into their new situation, with no immediate relevance to the MythArc. What's more, nothing particularly significant even happened until the introduction of Dr. Barlow [[spoiler:and Venus]].