Ninja Turtles Adventures: CUDLEY!
During TMNTA's run, many characters were introduced. None, however, were so cracktacularly awesome as... Cudley, the Transdimensional Cowlick! Thus I bring you scans of his appearances throughout the book's run:
Issue 7 opens with Raph explaining how he's understandably mad about something, recapping the previous issue and leading to:
With no choice but to agree, the Turtles put on goofy wrestling costumes and tag-team four-armed wrestler Cryin' Houn'. All the while Cudley looks rather ill, until finally...
Cudley's next appearance comes in issue 12. The Turtles find themselves in Dimension X once more, this time trying to find the reality-warping Turnstone before Shredder and Krang.
And at the end of issue 13, with the day saved, the Turtles have only one way home...
Cudley also appears in the Mighty Mutanimals miniseries, but I already hit the 1/3 page limit of the issue he's predominantly in when I posted Jagwar and Dreadmon's origins, so we'll skip to his next appearance in issue 37. Following the events of the Midnight Sun arc (which deekblues posted), the Turtles, Splinter, and Ninjara decide to take the long way home and see some of the world in the process. I believe they're somewhere in the Middle East at this point.
More wrestling ensues. This time the Turtles wrestle each other.
This was Cudley's last major appearance in the Archie series (though he does pop up in a couple of the Specials). However, in Mirage's Tales of the TMNT #52 (part of a Wild West C.O.W.Boys of Moo Mesa crossover that I know nothing about and thus cannot provide context)...