Wow!
That's actually a surprisingly addictive game. I see how the strategy element comes in with the size of the orbs, as well as the multiplier. Most enjoyable, but only if you have time to kill.
One thing that bothered me was the sudden background changes that threw me off for a split second, but that's not biggie. Overall, nicely done and quite original/satisfying.
~VelvetDarkRocks~