Quite interesting to play, however, there are a few things that need a quick fix, first, the resolution of the web player seems to be very odd, secondly, I broke the game when I turn the player back again to the previous ring and lastly once the game is broke the game makes no point to playing as the rings start to appear on random places running the score. have a look into the issue, you can also try adding more features to the game in the near future.