Can I please buy this game to play it locally? :) During my last play the browser just crashed by the score of 168, and the latency was extreme after the score of 80. During an explosion of say 20 helicopters the game makes a 5-s break. It could be very interesting to play further, but it is not possible due to performance. Maybe one could also limit the sound channel, because the crash of 30 helicopters introduces sound distortion which cannot be handled easily by the game engine, so that the sound crashed on my side after the score of 120.
Please do not leave this game unreleased! If you could improve it into a new "Alien Shooter", it would be a masterpiece.