The graphics are great, the idea is good, but I have a couple of complaints. The lack of sensitivity control makes it a tad difficult to play if you're used to lower sensitivity, and the audio is a bit on the loud side, id suggest either making it lower volume or add an options slider for that as well.
Other then those complaints, everything was great, I loved it and would likely end up playing it for hours on end!
Keep up the great work :)