Boris (bear)

Boris the Bear is a character created by James Dean Smith and Mike Richardson. He is a robot bear who destroys parodies of anthropomorphic comic characters, including the Ninja Turtles, Miyamoto Usagi, Cerebus, and Miami Mice.

Many of these characters, including the legitimate Turtles, got their "revenge" on Boris in Laffin' Gas #5.

Each of these characters also legitimately appear and get their revenge on a parody of Boris himself, Borax, in Samurai Penguin #4.