Hello! Great game. The audio is great, the volume is a bit too loud.
I think it could be better with more effects like squash and stretch on the ball and screenshakes when it bounces.
If I understood well, there is "opposite colors" that collides. I think that it would be better without this mechanic because I got my ball stuck on a corner once and it doesn't add more to the game.
Great job there, keep doing games!