Lots of fun with a few flaws
This is a very enjoyable game that quickly gets you addicted, but if I had to nit-pick I'd say that the lack of instructions or music is a very noticeable flaw. Telling people how to play and getting some fast paced tracks from the audio portal put in would go a long way in making the game better. Also, the circles occasionally had some hit detection issues where they wouldn't register my mouse on them until a second or two after I touched it. Also, the high score board only registers your first score. Aside from those problems, it's a very fun and fast-paced game that I can see myself playing again. Great Job! :D