Woahh, I know this is your first, but..
Eek. I know this is your first flash movie and all, but there was absolutely no plot or theme to this at all. That's essential in making a movie. There was no humor (well, a hint of it at Sting Chameleon) and there was no...well, motivation. Basically all this was was megaman doing what he does in the game. Try throwing in somthing that no one is expecting, some humor; just something different. Keep on practicing, the sprite movements and flow was pretty good.