Countdown is about three times slower than it should be, that is, each number ticking off is about three seconds instead of one, so the game is really nine minutes long. Would be nice to have special powerup bubbles (like changing size, clear screen, extra shots) and rather than making hitting a bubble lethal it could remove a percentage of health or adversely effect your player (make you bigger, slower,) It is nice without all that though, and the pleasant music improves the gameplay experience. Another idea just popped into my head, you could add special bubbles that don't affect gameplay but change the way the game looks, like make the game look glow in the dark or underwater or something. Just a passing thought. I Look forward to later editions!