Hmm, seems a bit lazy.
Unless it's the new fashion to show all gratuitous violence and martial arts with a black screen and a word in big bold font.
Imagine if everyone did that.
The message is not entirely lost - but everyone would think the kid was way more awesome and side more strongly with your message if we didn't assume that he was just giving the bully a loving hug (or performing oral sex on him) if we had the sound off.
You show promise as an flash animator, it's got a pleasant style and very clean - but your work is too short and and seems to have not enough effort placed in it for people to really be impressed.