Played like a comedy!
Stock characters, loud, booming music that reminded me of Gremlins, and lots of people shooting at monsters. Maybe this really was Gremlins, mixed with the Polar Express...since a bell is given to the main character and changes the way he thinks and feels about Christmas.
But I didn't think this was scary, at all. Loud, yes. Noisy, yes. And that bald guy from Final Destination and The Goldbergs instantly told me this was a comedy. And it wasn't even that funny.