First of all, the main menu is amazing !! Congratulations to the artist. It gives you kind of a 3D feeling too.
Also, the music is so relaxing and it fits perfectly with the game. The sound of the bubbles is great too.
It's a little bit difficult to control the bubbles but once you get used to it you can complete the levels easily.
It would be great if you add some kind of line renderer that shows you where the bubbles are going to go, that way you give some feedback to the player and make things easier for them.
Overall it's an awesome game !! You really did a great job in this Jam.
You got my rating :)