I feel like there are some good ideas in here, but perhaps too many at once, and some conflict with each other a bit. Using the big bell as a weapon gets mentioned a lot like a central mechanic, but it seems to be the weakest tool at your disposal given how little control you have over it. The tower defense mechanics are neat, probably my favorite part of this, but I think a lot of other parts could have maybe been cut to spend time on strengthening the more well defined parts of the game.