Judge Wexler: The Scolari brothers.
Ray: Friends of yours?
Judge Wexler: I tried them for murder. Gave them the chair. You gotta do something.
Egon: Why don't you just tell them you don't believe in ghosts?
The floating toys on the stool by Dana's tub disappear when the water becomes pink goo.
The sound of Vigo growling is exactly the same growl that the terror dogs from the first Ghostbusters make.