Nice game, a bit too simple and for now just a bubble shooter. For what I've understood you self imposed a limitation on yourself to make this game as lite as possible. Although impressive, I don't think it can justify the lack of content and the presence of bugs (bubbles of different colors getting wrongfully removed and lag when popping larger clusters of balls). So, for now, I cannot rate this project.
P.s I'm curious to know how big are the project files, I always love optimizing work💯