Slimer adopts a pet mouse in this episode that is never seen again, most likely due to the fact that mice have very short life spans.
The episode plot and primary antagonist share similarities with a previous episode, Ain't NASA-sarily So (1987), in which a space station is invaded by a power-hungry ghost that manifested in space.
When the Ghostbusters find Winston's empty spacesuit with his name tag on it, Egon Spengler's name tag can be spotted on his flight suit, which is a rare occurrence on this show.