http://m.imdb.com/title/tt0108526/
I had only played the terrible video game up until today, but it was certainly a sight to behold. I think it was the only animated film that Steven Spielberg had ever produced hot off the heels of Jurassic Park in a naked cash grab. Also John Goodman's debut into voice acting along with Jay Leno, Walter Cronkite, and Julia Child. The animation is quite good but the story and dialogue are absolutely bonkers and totally deserving of the HDTGM treatment.
Also check this gif from the 1993 Macy's Thanksgiving Parade of the Rex balloon getting popped by a street light: http://cdn0.dailydot.com/uploaded/images/original/2012/11/21/from1993.gif