Keith Griffen, co-writer of this episode, is a prominent comic book illustrator and writer. The other co-writer, Robert Loren Fleming, also wrote comics.
One of the few episodes in which the Ghostbusters trap Slimer.
The ghost Peter Venkman traps in the episode bears a resemblance to the ghost captured in the beginning of the episode "Janine's Genie," except it has legs and is colored green instead of blue.
Before Egon's P.K.E. Meter exploded, mathematical constants and equations flashed on the screen.
The voice actors were recorded on December 17, 1986.