Good Job
I'm a huge Astroids fan, so I'm being a little l lenient, but this could use some improvement. I really like the idea of the spaceship following the mouse and firing with the left click, that made the whole world easier. It could be a little more interesting though, like more enemies and power-ups and so on. Not that those are affecting your current score, but they would be nice. Also, the sound is SO annoying. It's a cool beat but there is just way too much drum in there. And static.
This is a pretty decent flash, I enjoyed it for about 5-10 minutes. Keep up the good work, I'll be looking forward to your next works.