Pretty good job...
While I was a little bothered by the fact that all the violence seemed pretty senseless (then again, this is Newgrounds, so what am I complaining about?), this had a lot of great cinematic quality. The intro was decent, and the music fit relatively well. If you had laid the backstory down a little better and improved somewhat on the movement animations, this could have been REALLY good. I think you guys could be churning out some really good animations in the future.