10 Ways To Make Teenage Mutant Ninja Turtles 2 Not Suck

[Commenter 42]

Originally Posted by MsMarvelDuckie

Blue Door? Oh GAWDS no! At least, not from what I've seen/heard of it. Honestly, I'm glad we got what we did over THAT potential travesty. Where did I ever say I liked it?! TMNT as aliens and "chosen" of their race? Um- no. Smacks too much of Superman or some such for my taste. These are NOT the "saviors/last survivors" of some alien planet. Just- that would kill it as TMNT.

As for reincarnation, etc- I "buy into" that AS A STORY/ORIGIN, yes. I do happen to have done a LOT of research and study on esoteric subjects- for reasons I won't get into- but that is simply something I enjoy in my fiction. I am an avid lover of Greek and roman mythology- after all, what were those stories if not man's first "superheroes"? Calling them gods and such is just an easy way to describe larger-than-life heroes and villains, explain phenomena that people didn't understand, and- well, you get the idea.

There you have it. Reincarnation is as distasteful to me as aliens are to you. Maybe you think reincarnation is simply another story. I think it's a dangerous idea, like any other religion, especially in stories aimed at our youth. It also just pulls me out of the story.

I also hate the notion that the turtles are possibly one of a race of other turtles, devised by utroms...etc. ugh. There are only 4 turtles, in one happy accident. Other mutants are just that, other mutants. I prefer chaos to order, because that is life.

I've also read many Greek and Roman Myths, and they are fun, but contemporary stories, such as TMNT, deserve better than thinking that is 1000's of years old. TMNT is a story of it's time, when NY was going through hell, and murder was an everyday threat. It's about the 80's, layered with the angst and fear of that era. When people stared at their shoes walking down the street, and never made eye contact. When alligators might be living in the sewers. When MJ was young and Black.

Bring it back, bring it all back in a film. No cellphones, no twitter, no ever present terrorist threats. Just jive talk and corrupt cops, punk clothes and Afros.

Could have been a great film.

[Commenter 42]

Originally Posted by pennydreadful

As far as Splinter being motivated to copy Yoshi as a rat, I always had my own little headcanon that maybe Yoshi rewarded Splinter for doing things like standing up on his hind legs, and it went from there. They have done studies that show dogs will copy human body movements and behavior, even when they don't get a food reward.

http://news.discovery.com/animals/pe...ate-people.htm
http://www.washingtonpost.com/nation...3bf_story.html

Again, it's a all conjecture given that the basic premise requires a bit of suspension of disbelief, still, it's not completely implausible.

This is the thing. Ms marvel refuses to acknowledge that animals, other than the human variety, might have some of the traits that humans do.

Study after study, in the last few years, have proven over and over again, that we have underestimated other creatures on this planet. I'm arguing, it's plausible, that's all. I'll take Yoshi training a Rat, with rewards or what ever, to Cosmopolitan Ninja or reincarnated dead family, any day.

[MsMarvelDuckie]

As much as I love the nostalgia angle, and the 80's, I'd want a TMNT that could belong to any time from 80's to present. I'd want it to feel like it could have taken place thirty years ago or yesterday. Makes for a movie that ages better, IMHO.

Deserve better than thinking that is thousands of years old? There's not much difference, really. TMNT and Superman are today what Hercules and Medusa would have been to the Greeks. Entertaining stories that also have a message, and themes that are as old as storytelling.

FWIW, reincarnation on its own is not a religion. It's a spiritual belief that is PART of several theological traditions. I think you're putting too much into it as an "afterlife" thing, to be honest. There is nothing dangerous about themes of hope, destiny, family, loyalty, or love, which is what these traditions are all about. Or enlightenment. True enlightenment is supposed to come when one realizes that one really knows nothing at all, and accepts that. It puts one's place in the universe into clearer perspective, as part of a vast, inter-connected web of life and energy. This is not a simple religious dogma, it is a philosophy of living that eschews the self and material entrapments. It's also quite scientific, if you think about it. We are made of energy and matter that has been around since the beginning of the universe. Our atoms are the atoms of the sun, of the Big Bang, or of Gandhi or Hitler. Reincarnation is really nothing more than a spiritual extension of that understanding in terms of the human condition. And that is a fact, not belief.

[Commenter 42]

Not in the way it's being used in IDW.
And as much as your "religion lite" version seems less intrusive, it's still not the story, but another story. And yes, of course reincarnation is only a tenant of religion, or many religions. I know the difference, but dislike the notion regardless.

And by 1000 year old thinking, you know what I mean.
I know you'd like to take this conversation further, but I'm hamstrung by the constraints of the forum.

I'll go on preferring the Mirage origin, you can keep exploring your interests.
We will have to agree to disagree, the thread has gone off topic for too long...

[MsMarvelDuckie]

Originally Posted by Commenter 42

This is the thing. Ms marvel refuses to acknowledge that animals, other than the human variety, might have some of the traits that humans do.

Study after study, in the last few years, have proven over and over again, that we have underestimated other creatures on this planet. I'm arguing, it's plausible, that's all. I'll take Yoshi training a Rat, with rewards or what ever, to Cosmopolitan Ninja or reincarnated dead family, any day.

No, I have fully acknowledged that SOME animals have "human" traits such as basic emotions like affection or sadness or even jealousy. There is ample enough proof of that. Human MOTIVATIONS are what I'm arguing against, FYI. In other words, they don't share motives like revenge and other complex drives. But regardless, imitation of simple actions like opening a door (I had a cat that could do this, and he could unlock it, too) or digging a hole still don't equate to performing a series of katas. There's not a rat (or dog) alive smart enough to copy that. Or physically capable of it, for that matter. A rat's (or dog's) hind legs don't even bend the right way for that! He might be capable of waving his front paws in an approximation of a strike, but without the proper form or stance, or any force behind it. Kicks would simply be impossible based on balance alone, without even taking body structure into account. As would most of the spins, flips, grapples, or other moves of many martial arts. Boxing or Sumo, maybe- but.... They're not TMST. Although Raph might barely qualify, LOL!

[Commenter 42]

As a rat, no, once mutated, yes?
The memories remained.

Anyways, all I have to say is:



Think this dog would dance better as a mutant? I bet he would!

Might not be as cute though.

If we really want to dig into it, no turtle would ever have the right hip/shoulder structure to do half of what they do either. A fused backbone to a shell, etc...the list is endless. We need a pinch of that magic powder known as suspension of disbelief.

Splinters revenge, in my head, only comes into play once he is mutated, not before.

[MsMarvelDuckie]

Originally Posted by Commenter 42

Not in the way it's being used in IDW.
And as much as your "religion lite" version seems less intrusive, it's still not the story, but another story. And yes, of course reincarnation is only a tenant of religion, or many religions. I know the difference, but dislike the notion regardless.

And by 1000 year old thinking, you know what I mean.
I know you'd like to take this conversation further, but I'm hamstrung by the constraints of the forum.

I'll go on preferring the Mirage origin, you can keep exploring your interests.
We will have to agree to disagree, the thread has gone off topic for too long...

Not sure whet you're referring to with how it's used in IDW- there has been NO mention of any specific religion or theology there. It merely mentioned that he prayed to whatever gods there were. The reincarnation didn't come into play until later, when Splinter told them about the past. And Leo began to remember things.

No, actually, I have no idea what you mean by 1000 year old thinking. Calling those old heroes "gods"? The only difference there is that now we call them "superheroes". It's a name. Something to designate that they are more than human, or have inhuman powers or what have you. People tend to give their heroes larger than life origins or stories, and ascribe abilities that are ridiculous to them. Nothing new about that. Look at Hollywood celebrity "worship". Same thing. It's just human nature.

I'll agree that it's derailed the thread a bit, but it IS still sort of in the spirit (pardon the pun) of what we feel would make a better TMNT movie. Basically, I think if they altered the origin from the new one just a little by adding in the past life bit, it would make MUCH more sense, or perhaps they could just show that Splinter was already learning a great deal when getting those injections in the lab to add to what he got out of that book (and possibly others).

[Commenter 42]

Originally Posted by MsMarvelDuckie

No, actually, I have no idea what you mean by 1000 year old thinking. Calling those old heroes "gods"?

I'll agree that it's derailed the thread a bit, but it IS still sort of in the spirit (pardon the pun) of what we feel would make a better TMNT movie. Basically, I think if they altered the origin from the new one just a little by adding in the past life bit, it would make MUCH more sense, or perhaps they could just show that Splinter was already learning a great deal when getting those injections in the lab to add to what he got out of that book (and possibly others).

I can't say anymore without treading into religious discussion. I don't want to anger our "gods" and lock the thread.

To the second point, I abhor the film, and there is nothing to salvage, except for the actor who played Shredder. Everything else is absolute junk. If they dared insert afterlife bollocks into the sequel, I'd really lose it.

Pray they don't.

[MsMarvelDuckie]

Originally Posted by Commenter 42

As a rat, no, once mutated, yes?
The memories remained.

Anyways, all I have to say is:



Think this dog would dance better as a mutant? I bet he would!

Might not be as cute though.

If we really want to dig into it, no turtle would ever have the right hip/shoulder structure to do half of what they do either. A fused backbone to a shell, etc...the list is endless. We need a pinch of that magic powder known as suspension of disbelief.

I guess it's the memories that bug me, since (I'll say it again) I don't buy that he'd have paid enough notice to "remember" any of what he saw. It would just be so much pointless movement to him. The dog dancing is cute, I'll give you that, but at least it's still physically possible. Rats doing side-kicks isn't. His leg would snap.

As for the turtles, I've always wondered about the shell thing, myself, and the best I can come up with is a lower hip structure (just below the shell rather than attached to it) and shoulders that are outside of it. Looking at the 90's movie suits, it's not hard to see how the shoulder joints would have been detached from the shell, and pushed upward. This would at least give them full range of motion of arms. Legs is a bit harder, but if we take the pelvis and extend the spine just a bit below the shell, with the pelvis there, it works. There have been a couple of artworks that showed how they would be anatomically built. The best version seems to be a bridgeless shell. That gives side mobility, at least. But I'm more concerned with how Splinter does katas as a normal rat.....


As for that film's quality of lack thereof, to each their own, of course, but I enjoyed quite a bit of it. What I didn't enjoy was Shredder's hackneyed scheme and Sachs basically TELLING everyone what they were plotting as if taunting them to stop it. Even before they had the mutagen to implement it. That's just arrogant and tacky....

[Commenter 42]

It's really easy to prove that they wouldn't be able to stand up. Take a broomstick, and tape it to your back. Now try and run. Every time you feel your spine move with your body, that's an impossibility for the turtles. It's the same with people with wings on their back, their spine would snap, as the spine isn't ridged, and on the first down beat of the wing, they'd become paralyzed.

You can argue the logic of memories all day, but given a choice, most people will be charmed by the rats "feelings" in the story, and project their own emotions, 100% proven scientific or not, over the mystical past life phenomena.

To wit, everyone loves cat videos, and their pets, respectively. They project all sorts of things onto them. Some even seem to show true emotions, and human like behavior. We trust that feeling, it gives us warm fuzzies.

The president goes on television tomorrow and declares he is the reincarnation of MLK, impeachment is sure to follow, because we'll think he's crazy.

[Candy Kappa]

For me the reincarnation angle is too convinient, the father and his sons (but not mommy, girls don't have a soul and isn't reincarnated) returns back from the dead as animals, but luckily so happened to be mutated into a bipedal form, able to remember past experience in martial arts, so they can take revenge against the man who murdered them 700 years ago, who conviently was hibernating to the same time frame the reincarnation took place and the animals got mutated.

One of the main component in the Turtles origin is that they where an accident, not divine intervention of a longer plot that went over 700 years in waiting. Doing the reincarnation makes a lot of questions. Like, where they in the reincarnation cycle between Yoshi & Sons, or did their souls linger 700 years until Saki was done hibernating?

If they where cycling through lives between Y&S to TMNT, why don't any of them remeber those lives..? Where they not important enough, was rat and turtle life the first time they where together in a new life, or where they always together in a father and sons relationship, one way or the other.

The Mirage origin have its flaws, like how can Splinter be alive as a normal rat when the Yoshi and Nagi feud was 18 years before Saki killed Shen and Yoshi (it was meant to b explained, but Mirage never did, so for all sense and purposes Splinter is a normal rat who miraculously lived for over 20 year). And it explicit states Splinter was mimicking moves, instead of observing. But personally, when those pills are swallowed, I think the story is the superior one due to the shades of gray morality of Splinter, Shredder and the theme of the cycle of vengeance and its trail of tragedy.

[Commenter 42]

I agree, there are some flaws, no doubt, but small changes could be made without destroying the story. the 18 years between events could be shortened to 4 or 5, and the rat fully mimicking the moves of his master, could be changed to something like this:



Maybe Yoshi, one day while practicing his forms notices the rat watching him. Perhaps he realizes over time that the rat appears to pay attention when he's running his forms. Maybe on day, the rat stands on it's hind legs, and looks as though he is trying to copy the form, though poorly, and as Yoshi goes to reward him, saki emerges from the shadows to claim his life.

I'm not against smoothing a few minor issues out. There could be ways to play within the original to make it work. There is no need to upend the entire cart and start from whole clothe.

[Candy Kappa]

The live-action movie did shorten the time span by eliminating Nagi from the story and had Saki as an adult and being Yoshi's love rival. but, they also changed Splinter's motive for training and caringfor the Turtles.

Although, I'd love to see a morally ambiguous Splinter that trained the Turtles to be his assassins. We're never gonna see that in movie form, Splinter needs to be the de facto white hat, and Shredder must be the black hat it seems. Even IDW did that.

[Commenter 42]

Originally Posted by Candy Kappa

Although, I'd love to see a morally ambiguous Splinter that trained the Turtles to be his assassins. We're never gonna see that in movie form, Splinter needs to be the de facto white hat, and Shredder must be the black hat it seems. Even IDW did that.

So much this^^^^

It kills me that it's never been explored in the films. THAT would make a great story.

[Leo656]

Alllllll that is why I NEVER liked Splinter as a rat-first. I mean, I saw the cartoons first so mentally, I'd already grabbed onto "Yoshi became Splinter" for years before the first movie told me different, but it never changed it in my head.

Both are equally implausible for a TON of reasons, but... "The guy turned into a rat" is just SO much simpler, and saves us all the debate about how plausible it would or wouldn't be for a rat to learn martial arts, stand upright, or remember pre-mutation events.

I mean, yes, technically the Turtles themselves don't "work" if we want to get technical about it. I've always just said in my head that "The mutagen does some serious internal restructuring, to the point of completely changing/distorting the bone, muscle, and organ structure of whatever creatures it affects", and also, "It's probably super-painful as hell and happens sort of gradually." That's the only thing I don't like about how the original cartoon presented Splinter's origin, it seemed to kinda happen all at once and it wouldn't.

I mean, yeah, huge leaps of logic and plausibility and "science" all around, but it's the only way *I* can ever make sense of any of it in a "realistic" way, without going the "It's all bullsh*t so who cares" route. To me, it's just SIMPLER to say that Splinter was a human first, and that the mutagen just completely flips creatures inside-out and sideways, plus it's all fake SO you can just leave it there and not extrapolate on it any further. It just keeps things simple. And your simplest explanation is the one you're supposed to roll with. Splinter being a rat just causes TOO many leaps of logical faith, as the last few pages will attest. It makes SO little sense that it gets people arguing about which parts are more or less nonsensical than others! I can buy a human becoming ratlike, and I can buy baby turtles mutated at a young age growing up to emulate human behavior. NOTHING about the "rat Splinter" origin ever made a lick of sense to me. You have to fight too hard to justify it, honestly.

As for the reincarnation angle, it's "interesting" but it's not something I'm a huge fan of. I don't think it fits this franchise, or at least, again, it only does if you take huge steps to force it to work, at which point you may as well not bother. As far as the actual effects of the mutagen, I think we all have to agree that the Nick version's "Magic Potion Of Plot Devices" is about as sh*tty as it gets. That show sure lost steam fast.

[Candy Kappa]

The Nick origin would have been pretty good in live-action, personally the Yoshi Origin, I prefer and find the most compelling.

It could even have been tied to Sacks industries instead of the Kraang.

[neatoman]

Originally Posted by Candy Kappa

The Nick origin would have been pretty good in live-action, personally the Yoshi Origin, I prefer and find the most compelling.

It could even have been tied to Sacks industries instead of the Kraang.

I don't like the Nick origin because it's pretty boring, it's just Yoshi randomly bumping into the Kraang as soon as he bought the turtles. The only interesting part about it is the backstory, which is pretty much the one from the 1990 movie with a baby added.

The origin in the Mirage comics, the Movie and the 2003 show may just be a riff on Daredevil but I love the irony of Yoshi's rat getting his unlikely chance to avenge Yoshi through such a random series of events, and it keeps the Utroms a mystery for a little while. In the Nick origin it's like "Oh no, he turned into rat after meeting aliens in alley, how tragic I guess?...".

Though I guess it's better than Yoshi just crawling down a sewer as soon as he arrives in New York, instead of actually trying to build a new life there.

[Purse Grabbin Puke]

Originally Posted by Galactus

You're not in a minority for thinking that the Captain America: Winter Soldier is a superior movie as I'm pretty sire a lot of people rank that film pretty high however I do think you're in a minority for think The First Avenger is terrible. What's so bad about it?

I watched it twice, did not enjoy it. I don't like to harp on things I don't like so I can't really get too in depth on it. I do remember thinking it was just so cheesy.

I think you can appreciate that the reason that Shredder is their primary villain is because of their personal connection. Otherwise you could replace him with any kind of character, an alien, a military commander, an evil industrialist....oh wait. Simply being mad at each other for disrupting their plans seem hollow by comparison.

Not to mention that it doesn't a lick of sense. Sure Shredder wants the turtles and Splinter for the mutagen in their blood but why on Earth where the turtles actively hunting the Foot? How did Splinter know so much about Shredder?

The film makers tried to play their conflict and confrontations with the same kind of drama that other versions have yet it doesn't make any sense. Taken with the origin they have there's no reason for these characters to behave the way the way they do except others versions did it.

The Turtles have many enemies who want to kill them because they stand for good. That is the age old recipe for comic books and comic book movies, and actually action movies in general. So yes there can be a villain who simply wants them dead so he or she can accomplish their evil plan.

The movie clear as day states that Shredder and the Foot have been trying to take over the city for years, that's when Splinter gives that AWFUL reason for why they're called the Foot. He says he trained them to fight for the people in the city. That is a very noble reason if you ask me. It's the same reason Superman fights for Metropolis, because he has the powers, and wants to use them for good. He, like this version of the Turtles, did not have some tragedy happen as a child to make him vow revenge, they just do the right thing. That's why I like Superman, that's why I don't have a problem with this reasoning for this TMNT movie.

The Nolan brothers did that?

Batman Begins drew heavily from The Man Who Falls, Year One, The Long Halloween and the sequels drew from the similar comic stories in looser ways. I can't think of any non-comic version of Batman they drew from.

Yes...they don't take those comics word for word, image for image, and put them on the screen they used them as inspiration, and fit them into their own version.

Also a complete wouldn't really be a sequel but certainly I think the general audience would be open to major changes which I speaks to my next point.

This general audience you speak of, it's about 8 people on a message board. For the most part people went and saw this and just liked it. Some people can disconnect when they see a movie, and just enjoy it, instead of picking it apart the whole time. I know when I saw the movie, everyone I could hear and see was very excited when they left the theater, and it was all positive. I know just doing a search on twitter the weekend of he release there were a lot of people who simply thought it was a fun movie. So this "general audience" I think YOU think you know of, actually doesn't care .0000000000006% about the things you dislike, or want changed. Everyone here is putting WAY too much into the discussion of this movie, and maybe even TMNT overall. In the grand scheme of things, this movie, this franchise, it means relatively nothing.

Obviously I'm generalizing but I don't think by much. The emphasis should be on whether people really liked it.

By that I mean many of the people who enjoyed have openly stated or in some cases only reason they did so was seeing TMNT back in live action in the big screen. That kind of implies that if you took TMNT characters out and replaced them with...oh I dunno Battletoads characters they wouldn't enjoy the movie. So they haven't really liked the movie but continued liking TMNT.

Some people just like the turtles...I mean why is that such a bad thing? Does it really matter WHY you like them?

And yes I WOULD enjoy a Battletoads movie!

Not sure where you get that removing their various loin cloths would expose their crotches.

Well you said this

I know it's shallow but one thing I really would like is if they got rid of the loin cloths and Donatello using mother boards and crotch coverings.

Well I was paying enough attention to see that when April fainted and Mikey had one more line the actual screen froze or after Raph was flexing the bullets out of his body the frames skipped. Likewise sometimes the action was hard to easily digest.

Were you watching a bootleg? I did not have those issues.

The turtles are also super strong. There's no way in hell any Foot soldier could stand a chance in hand to hand combat with the Bay turtles.

Well I personally want Baxter as the main villain in the sequel. He could create mousers, and robot foot soldiers.

Well Batman Begins didn't have anyone coming out if it saying it's the worst Batman movie or worst comic book ever made. TMNT had lots of that so I'd say that quite a lot of people thought it was botched.

Actually Nolan got beat up badly by "fanboys" and critics because he was trying to show as little as he could of Batman actually fighting people to show how he worked in the shadows and was fast and brutal...he was criticized heavily, for "not knowing how to film a fight scene" And Batman Begins, like TMNT, like Man of Steel, JUST made enough money for the studio to green light a sequel. If you watch Batman fight in the rest of the Trilogy his battles are very clear, and there are no quick cuts.

Dare I say that might have been a better (if not a compelling) motivation for Shredder in the first movie. He just wants to kill people none of this tricking the government crap with a cure crap.

Uh that IS what he's doing. He wants to kill millions of people so he can own New York City. Sacks just wants to be even more rich.

Originally Posted by Commenter 42

I read a book on hockey once. I don't play in the NHL.

I'm assuming you've watched it as well? Did that make you a pro?

Originally Posted by TrickOrTreater

"At least a rat with awakened intelligence and a humanoid body could remember the moves it saw its Master make and therefore apply them with its now advanced intelligence and humanoid body."

But said rat with awakened intelligence and a humanoid body can't learn from a book... k

Originally Posted by TrickOrTreater

Good thing it's a f*cking movie then.

Except when he learns to fight from a book, then it's a tragedy.

Originally Posted by TrickOrTreater

"Let's substitute something slightly ridiculous but also charming that the original creators did with something EVEN MORE RIDICULOUS AND CLICHE AND CONVOLUTED"

"Let's call the movie cliche and convoluted then complain they weren't more unoriginal and convoluted"

I'm sorry, but if you can't follow along with the INCREDIBLY simple plot of the movie, that's your fault.

Originally Posted by Commenter 42

YES! I agree, but I'm not trying to anthropomorphize Splinter. I'm citing scientific studies, and working with the source to establish the REASON for a blood feud. Otherwise they are 4 animals that happen to mutate, but are still just animals, with zero reason to care at all that one human is initiating a crime wave in New York. They have no reason to care! Why does splinter train them? In the 1st issue, it's because he wants revenge. He wants them to kill Saki.
Otherwise? "Hey freaks, let's get crazy and learn some martial arts cause, well, I'm just zany and bored."

By Splinter having a Motive, or an Agenda, his actions have purpose. It also opens up the opportunity for the Turtles to question Splinter. Being trained to kill from birth, by a father figure is actual, heavy stuff.

Issue 1 is the essential story. It needs to be told properly, as it does all the world building necessary. Every story after issue 1 is, in my view, an attempt to continue that stand alone story.

They do not NEED to have a blood feud. That is just your preferred reason for them to feud. Many conflicts are made from ideological differences, religious differences, political differences etc... The attack that happened in France was not because the cartoonist had some blood feud with those extremists... There is a common thread in comic books and comic book movies and tv shows. Good vs Evil. That's it, it's very simple.

Originally Posted by Commenter 42

Bring it back, bring it all back in a film. No cellphones, no twitter, no ever present terrorist threats. Just jive talk and corrupt cops, punk clothes and Afros.

Could have been a great film.

There was this great movie made in 1990...

As for those videos of the dogs, they didn't learn those tricks from sitting in a cage and watching, their owner interacted with them, and taught it to them. My dog is very smart, but he still needs to be taught things.

[The Boston Ninja Turtle]

I am on a tablet so to quote the specific line is very tough and this won't be as well written

but it's not true the turtles " have villians and who want to kill them because they'd stand for good"

Most tmnt villians want to get rid of them because they stand in their way or foiled their plans of something evil .

It's like me saying, eh you wear blue we are enemies now vs you ripped up my favorite green shirt I seriously hate you

[CylonsKlingonsDaleksOhMy]

Actually, I don't think a single established TMNT villain wants to kill them because "evil." For instance...

Shredder has a long-standing blood feud with Yoshi/Splinter stemming from a love rivalry for Tang Shen as well as rivalry for the leadership of the Foot Clan.

Karai (or Pimiko, depending on which series) is Saki's daughter and wants to avenge her father's death or defeat, and so continues the blood feud between the Turtles and the Foot.

Baxter Stockman has a grudge against April O'Neil, not the Turtles, for her seeming betrayal of him and his company, leading to his financial ruin.

Agent Bishop is trying to protect his planet from alien invasion, and sees the Turtles as threats to world security.

Krang is trying to establish a new homeworld for his people or trying to conquer Dimension X...

I'd say only henchmen can be qualified as "villains because evil", and that's mainly because their motivations are to serve their superiors and not be punished. E.g. Hun, Bebop and Rocksteady, Koya, etc.

The only "villain because evil" examples that come to mind are the 2014 movie's Eric Sachs and Shredder... because that script was utterly devoid of any character development, legitimate backstory, or intelligent motivation for their villains.