The voice actors were recorded on August 29, 1986.
Egon exclaims, "Holy Heisenberg!" which is a reference to Werner Heisenberg, a German theoretical physicist.
Ray mentions he won one free helicopter lesson in 1976. Everyone acts like they are surprised Ray can fly it even though he has flown Ecto-2 on several occasions.
Mr. Tummell's building and equipment is adorned with Egyptian motifs.
Tummell's scientist mentions compensating for the O-Zone balance.