These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Awesome Music: The religious leaders singing "Devil in the Blue Dress" is finally what expels Satan from Nancy's soul.
Big Lipped Alligator Moment: For some reason during the exorcism, Satan/Nancy turns into a giant ice cream cone. The characters don't get it either.
Though to be fair, it is another Shout-Out to The Exorcist. It's just that this time when she shouts "Lick me!", she turns into something appropriate for the line.