The episode was recorded on May 16, 1990.
One of the devices Janine brought was the B.U.F.O. Receptacle that Walter Peck used to transport Slimer in "Big Trouble With Little Slimer"
Egon's Spengler Speedster mysteriously disappears after the Dice dropping scene. The Storyboards provided on the The Real Ghostbusters Box Set Volume 4 reveal that the Spengler Speedster was captured by gas pump hoses and then eaten by the gas station's service bay.
The Herald News newspaper at the end of the episode mentions a T-10 four speed, under Louis, and Van Nuys, California, under Slimer.
"Dead Sam Club" is written on the back of the van that pursues Slimer.