The Power of Flash in Storytelling
I have to say, I'm rather impressed with this whole FFF series. I find the world you've created for these characters to be facinating. It's the presentation, really, that makes this good. When adapting characters from different games into a fanfic, that fic often has a sort of gracelessness to it. In the case of this series, however, you've managed to create one of the more artistic integrations I've seen in something like this. I also like the soundtrack; not a short melody looped, but something more encompassing that enhances the storytelling.
We're not dealing with the best artwork in Flash history, but this is still one of the best vids in Flash history, for the above reasons. This is one of the things Flash is made for.