This youth Real Ghostbusters shirt shows the Stay Puft Marshmallow Man getting into the Christmas spirit by wearing a Stay Puft Santa Claus hat. The Stay Puft Marshmallow Man was once a scary enemy for the Ghostbusters, but when they released him from their Containment Unit, he showed that he could be a hilarious friend that the Ghostbusters and Slimer called "The Big Guy". The Stay Puft Marshmallow Man shows his jolly side by wearing a Santa hat on Christmas.