Woot! Actionscript 3 debut! Pretty awesome game, at least compared to some of my others, hope you guys like it and I should be uploading a lot more in the near future!
Use WASD to move and click to shoot. Your shots do not kill enemies, but repel them. Avoid the black hole (it's that big black thing in the center). And, uh, try not to die... that's pretty much it! Oh yeah, press space to pause and E to mute when in game... Enjoy!