Gosh! That's a little too fun lol! I started playing and then suddenly the sun was up! It's very smooth, and playable. The camera moves just right, and the controls are very tight. The balance is a bit off, though, lol. I found that, quite quickly, I could upgrade my special attacks to a point where they would replenish their own charge% to full while being used, and thus could be used infinitely.
Other than that, a very nice little game that I could see myself REALLY playing... playing too much! lol!