I wish there was more of a variety of notes rather than just pitch shifting an octave. Something that kinda bummed me out is that all the bubbles would eventually form into the biggest one after leaving it alone for a second; I feel like this game is something you want to throw a bunch of chaos into and have it run for a minute or two just to see what happens, but it never lasts that long(I'm not sure how that would be resolved though, I'm just being picky).
That being said, I had fun, I like shooting a bunch of bubbles along the edge so they rarely crash and you get a fast flutter of notes.