Bats?
Great job on the animation. There are some areas it could be smoother, but hey... for a flash job major kudos.
I agree w/ the previous reviewer. Batman doesn't kill. Even in the Dark Knight world, Batman didn't kill. Change that, and you might as well pick any random vigilante like Punisher to do a film about.
The second point is that Batman isn't supposed to be immune to damage. He gets cut and shot all the time. It is partially what distinguishes him from Superman and the superpowered types... he goes out to fight crime despite the cost to himself.
Anyway, well done film overall, just have issues with the story elements.