Bumblebee backed over him on the driveway. Mojo no mo. Or maybe he was a Maximal in disguise, got horny, and left Earth to go find some alien poochie puss.
franky and mojo,ran together and decided to have a peaceful life together..but then came the war between the autobots who fought for freedom and the Decepticons who dreamt of tranny then DOTM happened.
Now... Was it Cujo, as in the horror film Cujo? Or the Ghost dog that Danny calls Cujo in Danny Phantom? Or both?
I'm with Quickdrawn94. What happened to Mojo? What happened to no one giving a rat's ass about minor details? The only funny thing he contributed to the movies was rustling Ironhide's jimmies.
He had his brain put in to the body of a monkey and was sold to a certain Professor Utonium and now you know the rest of the story....