Really nice puzzle game, managed to complete all the levels although the shot in the upper left section of the last level took us a million tries and it felt very tedious rather than fun. It would also be nice if the explosion effect of the ball wasn't as massive because it makes it harder to see things when it happens and it feels a little excessive. Maybe a simpler but still shiny smaller particles effect would be nice?
All in all everything else worked perfectly fine, the different mechanics were engaging and you introduced them very well. Good job! o/