It's ok
Graphics: Having this Flash done in black and white was a good choice. The characters were also well made. The only problem is that the animation seemed a little off in some parts, especially the jumping. I don't know what it is, but it just didn't seem natural and stuff like this usually have a more natural animation to it.
Style: The storyline is very clever. Judging from the note, I could tell that this is going in the right direction for an awesome series. The only thing that mifd me was the matrix style slowdown. It took to long and made the Flash less appealing.
Sound: I like the music selection, but they were used more like sound FX than music. Plus, the transition between each track was poorly done.
Violence: Like I stated in graphics, it didn't seem right for this type of Flash. The only thing that was done fairly well was the gun.
Interactivity: You had a menu selection button, but only a play button on a title screen. If for some reason I was unable to upload an actual menu, then you can omit my statement here, seeing how I had no real menu.
Overall: Good with the story, just improve for the next one.