Slimer made his debut in Pooh's Adventures of Ghostbusters. Pooh and his pals saw him at the Sedgewick Hotel. He got captured by the team. Later, Walter Peck shut down the containment unit freeing Slimer. Later, at the end of the movie, Slimer returned to the 100 Acre Wood. Slimer was named "Slimer" by Mewtwo, just to annoy Rabbit. Pooh's Adventures of Scooby-Doo and the Witch's Ghost reveals that, although he was a former servant to Gozer and the Terror Dogs, he wasn't able to detect any evil from Ben Ravencroft. Mostly due to lures of food, as usual.