http://www.ninjaturtles.com/comics/mirage/one/pg01.htm
I gotta say, it's a bit different than I would have thought. More violent, and the end of Issue 1... To a fan of the old cartoon, and even the movies, was really surprising.
It does seem to go back to a more normal American Super Hero thing after that, though. The most violent stuff (from what I've read so far) seemed to happen in issue 1, with a brief violent moment in issue 2 involving an animal of all things, with April O'Neil watching and smiling... Thought that was a bit weird, but I guess killing animals wasn't off limit for comics in the '80s like it was in movies. No SPCA watching the comic book industry.
Also, while my memory of the cartoon is a bit fuzzy, I don't remember Baxter stockman being black in the cartoon. I guess they changed it because they didn't want a black villain for fear of fostering racism.
Anyhow, I looked up old posts and found that Ronin was a fan, and I"m sure there are others, but it was my first time getting to read any of it.