The Stay-Puft Marshmallow Man, also known as Mr. Stay-Puft, is a fictional character from the Ghostbusters franchise, who sometimes appears as a giant, lumbering and paranormal monster. He first appears in the 1984 Ghostbusters film as a logo on a bag of marshmallows in Dana Barrett's apartment, on an advertisement on a building near the Ghostbusters' headquarters, and finally as the physical manifestation and form of the apocalyptic Sumerian deity Gozer.