One of the funniest and scariest giant monsters of all time tears its way through Ghostbusters. There is nothing more frightening than an enormous multi-layered marshmallow with an attitude. But just imagine if you burnt the Marshmallow Man. That is one tasty monster.
The history behind the Marshmallow Man is interesting. Wikipedia explains that in the original script, Dan Aykroyd was the person who thought of the giant marshmallow. It stemmed from the concept of a cute, cuddly mascot all blown up into a terrifying monster. Bill Bryan created the outfit as part of a miniature set which was blended in for the finished product.
The worst part of a massive marshmallow man would have to be the sticky cleanup left in its wake. How do you get towering pieces of marshmallow off a building? No easy task, that.