At the beginning of Chapter 3, Curtis receives in mail a promotion postcard for Adrienne Delaney's new book "Coping with Loss". Adrienne Delaney is the protagonist of the first Phantasmagoria (1995).
Don Berg (who played Bob) admitted in an interview his character was originally scripted to have more interaction with the other characters, including a scene where he's sucking up to his boss, but these were trimmed from the script before filming began.
V. Joy Lee (who plays the role of the lunatic Ratwoman) also played in the first Phantasmagoria (1995).
During a visit to the therapist, if the player clicks on the therapist's license, and type in the word "Batman", the scene will conclude with someone appearing out of nowhere dressed as Batman.
Lorelei Shannon: The writer makes two cameos: as a mental patient in Greenwood sanitarium, and as a gas-masked patron at the Borderline S&M club.