Reitman later admitted he made up the figure, basing it on three times the budget for Stripes, which seemed "reasonable". The creature was given the name "Slimer" in the 1986 animated television series The Real Ghostbusters.

and "Haunted House", which was written and performed by Mckenna Grace are heard during the film's end credits. According to Gross, two versions of the logo exist, with one having "ghostbusters" written across the diagonal part of the sign. There were approximately 50 to 60 different theme songs developed for Ghostbusters by different artists before Parker Jr.Sheri Linden of The Hollywood Reporter described the film's cast as "engaging" and "[having] the comic beats down", and added that "they also play more fully fleshed people than the first film offered, reflecting the director's interest in character-driven stories". A separate animated film from Sony Pictures Animation was also announced to be in development, to be directed by Chris Prynoski and Jennifer Kluska, and written by Brenda Hsueh.

l] That year saw the release of several films that would later be considered iconic of the era, including: Gremlins, The Karate Kid, The Terminator, A Nightmare on Elm Street, Romancing the Stone, and The NeverEnding Story. According to Edlund, lawyers used much of the setup time finalizing the contract, leaving only ten months remaining to build the effects studio, shoot the scenes, and composite the images.Huey Lewis was approached to compose the film's theme, but was already committed to work on Back to the Future (1985). Audiences polled by CinemaScore gave the film an average grade of "A−" on an A+ to F scale, while those at PostTrak gave it an 82% positive score, and 69% said they would definitely recommend it. So thrilled to play a small but mighty role in this epic movie, as one of the voices of the Mini-Pufts.