Snuffles calls himself "Snowball" as a nod to revolutionist pig Snowball from "Animal Farm" by George Orwell.
Scary Glenn is the only denizen in Scary Terry's dream-world that does not have swords for fingers
The title to this episode is in reference to the movie The Lawnmower Man (1992) starring Pierce Brosnan and Jeff Fahey. In the film, Fahey plays an mentally disabled man who is given the opportunity to advance his knowledge through the use of a Virtual Reality Headset.
The scene where dogs are playing cards is reference to "Dogs Playing Poker" by Cassius Marcellus Coolidge.
In the scene with the dogs playing cards, there's a velvet painting on the wall behind them of humans playing cards.