Of the three initial Nicktoons, Ren & Stimpy _ had the shortest run and was cancelled in 1996, likely because of its multitude of controversies. _Ren & Stimpy _ had a short-lived, widely panned 2003 iteration on SpikeTV called _Ren & Stimpy: Adult Party Cartoon _ which was, as the titled suggests, explicitly for adults. _Ren & Stimpy _ has a fascinating, yet troubled, history for a fascinating, troubled show. But its mark upon animation cannot be ignored, and it's readily apparent in shows like ...