Hey! Making a christimas rhythm game was a nice way to incorporate the theme and I had a lot fun with the menus and the overall presentation.
The defrosting + playing the right bells felt a bit too overwhelming to me, even with the difficulty settings. I think you could have had the player defrost all the scenario only that one time in the beginning (because for me it was a very clever and fun way of introducing the game) or had the fire be the only thing that needed tending, with a much slower "fire decay" time.
The rhythm part was also a bit confusing to me, because the TV and the played bells would overlap different sounds. Maybe a more traditional "guitar-hero like" UI and no sound (or some mutted/filtered notes for missed inputs) coming from the TV would've made it a little better.
All that being said, I really liked this entry and think you all did a great job :)