After The Phantom introduced himself to the Ghostbusters, he sent the Motor Home Creature after them to raise the stakes of the game. It eventually caught up to the guys and destroyed the Slime Buggy. After Peter Venkman shot it, the guys witnessed it grow in size. Winston Zeddemore got an idea to lose it a canyon ridge. After lured it there, the Ghostbusters continuously blasted it until it became so big it was stuck in the canyon. In a last ditch effort, the creature rained down car parts on them as they drove under it.
When hit by a Proton Stream, the creature grows in size.
- ↑ The Real Ghostbusters - "Afterlife in the Fast Lane" (1990) (Storyboards p. 7). CPT Holdings, Inc. Line reads: "Motor Home Creature."