If you were comic book fan in the early 90s, the X-Men cartoon was a really big deal. First, it was the X-Men, which reinvigorated the comic book industry at that time. Second, the cartoon was not dumbed down for kids at all. Some of the more violent aspects were removed, but the cartoon stayed as dark as the source material and tackled mature subject matter. Best of all, it had one of the most kickass intros to ever grace an American cartoon.