Linda Gary originally voiced Shveinkiller but her efforts were replaced by a new recording provided by Dave Coulier
Egon reminds everyone it is a working holiday. This isn't the first time. They previously went on a working holiday in the appropriately titled "Bustman's Holiday"
At the 01:48 mark, the Ghostbusters pass by men waiting for people to arrive by train, holding up name-cards that including Mona Lisa and Elvis.
The villagers of Blukenporken play a rendition of the Ghostbusters theme on their accordions. It should also be noted that the organ grinder in the beginning of the episode plays a tune similar to the "I Ain't Afraid of No Ghost" portion of the song.