History YMMV / NinjaTurtlesTheNextMutation

** "Trusting Dr. Quease" begins with the titular character and Dragon Lord arguing after capturing the turtles over what to do with them, leading to Quease accidentally releasing them, inexplicably convincing Donatello that there's still good in him and to try collaborating with him. Quease could have released them willingly [[PragmaticVillainy to punish Dragon Lord’s breach of contract, or to keep them alive to try and study/dissect later after discovering Dragon Lord’s plans to eat them]], which would make Donatello's conclusion and attempts at reaching out to him a lot more believable. Quease could possibly even go along with it like in the original episode, only to get increasingly conflicted as Donatello proves increasingly more useful to him, leading to either him becoming an AntiVillain, pulling a full HeelFaceTurn, or even a CruelTwistEnding where he ultimately decides that Dragon Lord’s lab and funding are too crucial to his work, and tries to deliver Donatello to Dragon Lodd after he outlives his usefulness.

** Three examples regarding the ''Series/PowerRangersInSpace'' crossover.

** Silver. the idea that a yeti would become a mob boss is exactly the kind of narm-y, goofy, but still kind of awesome idea that the franchise thrives on. He'd fit in with plenty of other incarnations if they ever decided to use him again; if nothing else he would have been a perfect fit for the original 1987 toyline.

* UnintentionallyUnsympathetic: All four of the male turtles are meant to be flawed but lovable goofballs, but between [[DesignatedHero constantly acting like bumbling, selfish, and callous idiots]], cracking jokes and one-liners even at the most inappropriate of times, [[DysfunctionalFamily constantly fighting with each other over the most inane of reasons, along with being disrespectful or indifferent towards their mentor/father figure Splinter]], and being [[AllMenArePerverts pervy]] and/or [[HeManWomanHater dismissive]] towards token girl Venus, a lot of viewers end up wishing that Dragon Lord just made a meal out of them already.

* AdaptationDisplacement: Not the series itself, but many peoples' introduction to this series was the crossover with ''Series/PowerRangersInSpace'', since the older ''Power Rangers'' shows, and by extension, the crossover, had more life in reruns than any episode of ''The Next Mutation'' ever did.

** In "Unchain My Heart" it is revealed that Bonesteel is a Proficient Vampire hunter. Despite discovering and capturing one of them easily, he unceremoniously lets them go to focus on capturing the Turtles. Learning that Vampires are in the area and pivoting to taking action against them, especially with a live one that could be used as bait for the rest of the group, could have been an interesting direction for Bonesteel in this special, as it could have meant an EnemyMine with the Turtles once he finds out they're also against them and possess the heart of their leader, with them agreeing because they're out of their depth with this new supernatural threat and need an expert vampire tracker to find them.(which could even lead to him [[TheChessmaster trying to use the situation to lead the Turtles into a more vulnerable position where he could get them both in one fell swoop]]).
** "Trusting Dr. Quease" begins with the titular character and Dragonlord arguing after capturing the turtles over what to do with them, leading to Quease accidentally releasing them, inexplicably convincing Donatello that there's still good in him and to try collaborating with him. Quease could have released them willingly [[PragmaticVillainy to punish Dragonlord's breach of contract, or to keep them alive to try and study/dissect later after discovering Dragonlord's plans to eat them]], which would make Donatello's conclusion and attempts at reaching out to him a lot more believable. Quease could possibly even go along with it like in the original episode, only to get increasingly conflicted as Donatello proves increasingly more useful to him, leading to either him becoming an AntiVillain, pulling a full HeelFaceTurn, or even a CruelTwistEnding where he ultimately decides that Dragonlord's lab and funding are too crucial to his work, and tries to deliver Donatello to Dragonlord after he outlives his usefulness.

* UnintentionallyUnsympathetic: All four of the male turtles are meant to be flawed but lovable goofballs, but between [[DesignatedHero constantly acting like bumbling, selfish, and callous idiots]], [[DudeNotFunny cracking jokes and one-liners even at the most inappropriate of times]], [[DysfunctionalFamily constantly fighting with each other over the most inane of reasons, along with being disrespectful or indifferent towards their mentor/father figure Splinter]], [[AllMenArePerverts and being pervy]] [[HeManWomanHater and/or dismissive]] towards token girl Venus, a lot of viewers end up wishing that Dragon Lord just made a meal out of them already.

** "Trusting Dr. Quease" begins with the titular character and Dragonlord arguing after capturing the turtles over what to do with them, leading to Quease accidentally releasing them, inexplicably convincing Donatello that there's still good in him and to try collaborating with him. Quease could have released them willingly [[PragmaticVillany to punish Dragonlord's breach of contract, or to keep them alive to try and study/dissect later after discovering Dragonlord's plans to eat them]], which would make Donatello's conclusion and attempts at reaching out to him a lot more believable. Quease could possibly even go along with it like in the original episode, only to get increasingly conflicted as Donatello proves increasingly more useful to him, leading to either him becoming an AntiVillain, pulling a full HeelFaceTurn, or even a CruelTwistEnding where he ultimately decides that Dragonlord's lab and funding are too crucial to his work, and tries to deliver Donatello to Dragonlord after he outlives his usefulness.

** In "Unchain My Heart" it is revealed that Bonesteel is a Proficient Vampire hunter. Despite discovering and capturing one of them easily, he unceremoniously lets them go to focus on capturing the Turtles. Learning that Vampires are in the area and pivoting to taking action against them, especially with a live one that could be used as bait for the rest of the group, could have been an interesting direction for Bonesteel in this special, as it could have meant an EnemyMine with the Turtles once he finds out they're also against them and possess the heart of their leader (or even lead to him trying to use the situation to lead the Turtles into a more vulnerable position where he could get them both in one fell swoop).

** In "Unchain My Heart" it is revealed that Bonesteel is a Proficient Vampire hunter. Despite discovering and capturing one of them easily, he unceremoniously lets them go to focus on capturing the Turtles. Learning that Vampires are in the area and pivoting to taking action against them, especially with a live one that could be used as bait for the rest of the group, could have been an interesting direction for Bonesteel in this special, as it could have meant an EnemyMine with the Turtles once he finds out they're also against them and possess the heart of their leader (or even lead to him trying to use the situation to lead the Turtles into a more vulnerable position where he could get them both in one fell swoop)

*** The 2012 TMNT show's version of Karai has some similarities to Astronema to the point one may wonder if the former is a deliberate {{Expy}} of the latter. Both are female villains who dress in black and silver, [[spoiler:both are siblings to the hero(es) who were taken and adopted by the villain with no knowledge of who their real family was, and both pull a HeelFaceTurn upon finding out the truth. Karai's name even begins with the same three letters as Karone, Astronema's birth name.]]

*** [[ComicBook/MightyMorphinPowerRangersTeenageMutantNinjaTurtles Another crossover between the Turtles and the Rangers]] would later be made, but now it's between the Series/MightyMorphinPowerRangers and a TruerToTheText version of the Turtles.

** The [[WesternAnimation/TeenageMutantNinjaTurtles2003 4Kids show]] had a season where the Turtles undergo training to gain supernatural abilities, including the power to transform into dragons.

** The 2012 show has April undergoing martial arts training and later is revealed to have PsychicPowers. In other words, she has borrowed traits from a character that replaced her in this show as the turtles' sole female ally. Extra points for 2012 April fighting with a CombatHandFan which was Venus's weapon in the toyline.

*** The first Power Rangers show fully produced by Disney was ''Series/PowerRangersNinjaStorm'', another series where the heroes were ninjas guided by an anthropomorphic rodent. For bonus points, the [[TheSmurfettePrinciple token female]] of both teams wore cyan and was {*Ship Tease}}d with a male ninja in dark blue.

*** The first Power Rangers show fully produced by Disney was ''Series/PowerRangersNinjaStorm'', another series where the heroes were ninjas guided by an anthropomorphic rodent. For bonus points, the [[TheSmurfettePrinciple token female]] of both teams wore cyan and was {[Ship Tease}}d with a male ninja in dark blue.

*** The Karai from 2012 Nickelodeon TMNT show has some similarities to Astronema to the point one may wonder if the former is a deliberate {{Expy}} of the latter. Both are female villains who dress in black and silver, both are siblings to the hero(es) who were taken and adopted by the villain with no knowledge of who their real family was, and both pull a HeelFaceTurn upon finding out the truth.