This is a fun idea and a fun mechanic. I like that the controls are pretty simple as well. I do however feel a problem with how often the clapping sounds are playing, which end up becoming a bit of an annoyance or my ears start being desensitized to it; but most of all the fact that I only hear the bowling pins pop up when they pop up. I can’t aim at a bowling pin after it has popped up because I no longer hear where it is after that brief moment. So I think this is something that you should think about.
I also don’t have any downside to just moving the hands throughout the whole screen and throwing infinite balls at it. I like that because it was easier, so I’d keep that option for a godmode play, but I would consider something with points and maybe only three balls to throw, etc.
I would definitely look into using this concept for a blind-accessible bowling game, with the bowling pins in their natural disposition for the game and the hands moving also side to side and not only in circular ways. This could also help making a mechanic for a golf game. It’s a great concept and I would like to see you explore it more!
Edit: Streamed it: https://www.twitch.tv/videos/2711908194