This was a really good game with a unique idea and a bit of a challenge. I couldn't get past the 7th (I think) level where the bubble went to the right at the start; I got stuck in an endless loop of falling and restarting the level. Or maybe I'm just dumb and didn't figure out the solution. If it was a bug, I took a video of it and can send it to you.
The gameplay was really fun though, and the game itself felt polished. I also really liked the details of the bubble animations and the menu/level selection was very cool. Worthy of a great rating, for sure.