Beetlejuice was a fictional ghost from the same-named movie of 1988. The movie was so popular, a cartoon loosely based on it aired for three years. Due to being a ghost, Beetlejuice has been seen with the Ghostbusters in several attractions at Universal Studios. In the early 90's, there was a performance at Universal Studios where he appears on the ledge of a building, asking civilians if they want to play strip Scrabble with him. The Ghostbusters then arrive on the scene. Beetlejuice encourages the boys in gray to come in after him. We hear crashing sounds and desks and lamps come out of the windows. After all of the calamity, the Ghostbusters exit the building holding a smoking trap obviously containing Beetlejuice. Another performance years later called Extreme Ghostbusters: The Great Fright Way had Beetlejuice at the Firehouse and singing a mocking parody of the song New York, New York. Then the "Extreme Ghostbusters" arrive to trap him, but instead get possessed by Beetlejuice and perform a flamboyant lip synch concert. After the performance is over, Beetlejuice and the Ghostbusters ride away in Ecto-1. A similar performance in 1991 had the original Ghostbusters find Beetlejuice and attempt to trap him. First, Beetlejuice attempts to trick them by making them think the client is the ghost. When that doesn't work, Beetlejuice makes the Ghostbusters lip synch Ain't No Mountain High Enough and M.C. Hammer's U Can't Touch This. Eventually, Slimer slimes Beetlejuice and the Ghostbusters bust Beetlejuice offstage.
- Since Beetlejuice is the spirit of a deceased person, his classification may be Class 3 or 4, but he has incredible magic powers, so he may be a Class 7. However, he is classified as a Class 6 in the Extreme Ghostbusters skit.
- In all performances, the intro portion of the Ghostbusters theme song plays when the Ghostbusters arrive to stop Beetlejuice. In the 1991 performance, an entire instrumental version plays.
- The Extreme Ghostbusters from the animated series from the same name never actually made an appearance in the show.