The Ghostbusters travel to the apartment building roof as Dana/Zuul and Louis/Vinz open the gate between dimensions and transform into demonic dogs. Gozer appears in the form of a woman and attacks the Ghostbusters, but disappears before they can retaliate. Her disembodied voice demands the Ghostbusters "choose the form of the destructor." Ray inadvertently recalls a beloved corporate mascot from his childhood, and Gozer reappears in the form of a giant, "Stay Puft" marshmallow man that begins destroying the city. Against his earlier advice, Egon instructs the team to cross their proton energy streams at the dimensional gate. The resulting explosion destroys Gozer's destructor form, banishing it back to its dimension, and closes the gateway. The Ghostbusters rescue Dana and Louis from the wreckage and are welcomed on the street as heroes.