In the big shootout with the police, we see the words, "Stilleto was here" spray-painted on a barricade. This is a reference to the character of Stilleto, who appeared in George Bonilla's first two films, Zombie Planet and Zombie Planet II: Adam's Revenge.
The original title of the film was to be "Disco Vampires." It was changed prior to production because director George Bonilla felt that it may be mistaken for a comedy.