Bewm Headshot!
Excellent! I was genuinely glued to this for about 5 minutes! Got bored after about wave 60 though. xD
In terms of graphics - 5, because it's nothing special, but I did like the simple, bouncy look to some of your stuff
Style - 8, Although the graphics are simple, you've turned them into something original, and ultimately unique. Nice job!
Sound - 9, I've always said that there's nothing like screaming your head off whilst trying to dodge a barrage of laserbeams. The sound on this made me do just that. Although the music does get a bit repetitive sometimes.
Violence - 6, Would've liked to see more wreckage after a ship gets pwned, but you'll have time to do another version. :3
Interactivity - 10, Smooth, responsive controls. I found myself trying out different tactics to dodge enemy fire, like the Viet Nam Blackhawk technique of spinning around the edges and launching all I've got into the middle. Would have liked some more weaponry though, but I'll still give ye a 10.
Humor - 2, You weren't going for funny, so fair play.
Corking game sir! lemme know if you make another! ^_^