There's a new version up that may address the issue some players have experienced with increasing lag with long games. If you still find that the game becomes less and less responsive the more you play, please let me know.
Right now a Kongregate exclusive, so make any comments or suggestions here and I'll see them. Even if I can't put your idea in this version, I'll keep a note of it when I do a sequel. Thanks for playing!
Following numerous requests, I've added a music mute button and a restart button. Also added code that should enable Badges as soon as I get a chance to figure out the API.
Great, imaginative visual design, simple to understand and excellent sound. The actual game play mechanic isn't my thing, but it's still a top-notch job. 4/5