Nice work. I liked the light expanding mechanic that would ring the bell. It was a cool balance between making it easier to find the presents but also harder because Santa would find you faster.
Very cool concept. The sound was cutting in and out at times, and I found the small circle of light just a little too small. It didn't feel claustrophobic, it just felt too small.
Overall though, nice work. The first time I died freaked me out. I almost jumped out of my chair. So yeah, you elicited the right horror feelings.
Good luck with the jam and Merry Christmas!
D