Huh.
...that's a little too similar to my unfinished Martyr game to my liking (although I know you were aiming for Geometry Wars). I might have to go back and change a few things before I release that one (IF I ever release that one).
That said, you did a pretty good job of emulating the other game, but I still like the feel of the other game a lot better. Plus it's a lot prettier, but it's not like Flash can handle the insane amount of particles that game has, anyway. Still a worthy effort, though.