Why this sounds like an irony ?
Yeah. This show turned out sooo good.
The show has its ups and downs, but overall is the best incarnation of tmnt in my opinion.
It is a pure love letter to the history of the franchise.
He has always had hair under his helmet. Look at Roll: she has always just looked like a human girl. From what I remember of early story summaries of the new cartoon, the premise isn't that he is a kid, its just that he is a robot who wants to go to school with other kids. This isn't even a new concept: it was the premise of the short-lived Dreamwave Mega Man comic.
Mega Man is a robot. Or at least a computer program. He's not just a kid. How do you fuck that up
The idea of Mega Man having a human civilian form and then transforming into his armor to fight was even present in the Mega Man Megamix manga. Mega Man is deeply rooted in Japanese superhero cartoons and TV shows. Both the Star Force and Mega Man ZX series were about ordinary humans transforming into superheroes called "Mega Man", for crying out loud. Mega Man having a transformation sequence to put on his armor is hardly outside the norms of the franchise.
I just remembered that there was a Mega Man design made for a cheap smartphone game that I really love (the design, not the game):
If the TV show shows off the same artstyle as the OP it isn't so bad, but the old one has a really nasty combination of an overly simple artstyle with an overly complex character design.