Looking good so far.
Trailers are usually crap, considering people start out to make the trialer rather than the actual 'movie'. Let's hope you've got some actual TIME in this. What you have so far alludes to a bit of story as well as a lot of action. I hope that wasn't the majority of what you've got in store.
The imagery started out pretty shitty, and I was warming up to critically tear into yet another lame, plotless DBZ-esque Sonic ripoff. But I was actually impressed. The music selection was perfect and it was very artistically synchronized with the animation. Moreover, with what was happening IN the animation.
So don't let us down. What you have here so far is top 10 material if you stick with it put the extra effort into polishing this project into a real gem rather than tossing another crusty stone into the unforgiving waters of Newgrounds. Take your time and remember that action isn't nearly as exciting without proper catharsis. The only victories are the battles never fought. To fight is to accept a compromise... and one bought with sweat, tears and blood.