At first, I thought this was going to be pretty dull. But actually, it gets quite hectic once things speed up. The stroke of genius in this game is having the keys fly off and clatter all over the place, making it harder and harder to see what's going on as everything spirals out of control. However, as others have mentioned, pressing the function keys causes all kinds of stuff to happen, and they shouldn't be included in the game. Nice work!