Thank you so much for playing, and the feedback! Good to hear that you liked the look and especially the feel of the rhythm.. that i think was the most challenging part for us to work out!
As for combining the two.. you have a good point and we deliberated on this exact point, but couldnt really find a solution to combine it.. So the idea was that the player can treat it as purely a rhythm game without looking at the right and it shouldnt matter, Looking at the right is purely optional. however, we later realized, that if the player gets comfortable enough with the rhythm part of the game, info from the bowling part of the game COULD be used, like the position of the ball and which direction it is moving in, which can help the player to complete the game without getting a majority of notes right like in a typical rhythm game. (Again, we realized this after many playthroughs, so may not be applicable for a new player) So I hope that you can try again with that in mind :)
But great to get your feedback, it definitely helps and we will try to find a solution which probably integrates the right part of the game more post the jam!