Well, I played it for a bit. I can see it being quite adictive, due to the arcady nature of it.
I have only two feedbacks, based on the couple minutes that I played:
When you grab a dot, it shows you a grey arrow, to the next red dot, to keep the combo. The arrow is a perfect equilateral triangle, which throws me off regarding in which direction should I actually go. So, make it not a perfect triangle. Make one of the points longer, or a different color, and that is the point that should point to the next dot.
The second thing is, when I hit something, and loose, give me some "explosion", some particle effects. Basically some visual feedback.
That's about it. Hopefully it's usefull :)