Very neat game! I couldn't make it onto the scoreboard, but I bet I could with enough practice... I wish I could see my own score and roughly where I'd place, or at least what my best score is, so I know how far I have left to go.
I also wish the ship wouldn't "snap back" to cardinal directions though, it makes it so much harder to shoot diagonally. I want to fire back at the ships that bully me! Also, I keep thinking of my own ship as a crayfish. It has a bit of a crayfish shape, doesn't it?