I think this is such a smart way to approach the prompt. For some reason though, X wasn't working for me and I had to press C to shoot. I don't know why that was, I'm using a mac so I don't know if that matters. I think something interesting that could be implemented is if you gave the bells a little movement. It might also give the player more opportunities to shoot and not get hit while also adding a different kind of difficulty. I don't know how hard that would be to do though. Overall, super cool.