There were at least four versions of the episode in script form. The first draft was done on June 17, 1987. The second revision was done on July 29, 1987. The final was done on August 3, 1987. The rev. final was done on August 21, 1987.
The voice actors were recorded on August 5 and 7, 1987. Dave Coulier recorded alone on August 7, 1987.
Ray tells a spooky story about a Werewolf, a type of entity the Ghostbusters previously encountered in "No One Comes to Lupusville".
Slimer was scripted to have Twinkies in his bag.
Ray used to be a Boy Scout. He later recovers his Boy Scout shirt at the end of The Brooklyn Triangle (1988).