Needs work...
I like where you're going with this. But what you need to work on is detail. Most of the trees are drawn with shape tools and the backrounds are single base colours. What anime feeds off of is the detail. Your characters are mediocore at best, and they have floating arms and legs.
Not cool.
Add the rest of the arms and legs, add more detail, (like the part with the flames/charge up move) and make it run slightly smoother.
Do all of those things and you might just be on the way to front page.
The music fitted the flash well though.
Overall: 4
-Spackerchip-