Very choppy, even for a begginer. Try working on your animating skills a bit before you upload, so then you wont have to suffer the insults anymore.
Hoping Part 1 Comes out FAST!
If you made the animations a bit less choppy and more fluint, And maybe mess around with effects more, this could have potential.
Seeing as how i am also running with a sonic based(yet non sprite although it started there) animation series, i thought i'd give some constructive critismal though the animation was a bit choppy i could somewhat put together the story behind it and it looks pretty bold. the quality is a little bad now but what counts now is that you got the point across to someone. i am a lot less dense then most people but you gotta make it a bit more clear.another thing if you made this in Macromedia Flash 8 a couple of easily fixed problems like weirdly fast idles choppy frames and such exist.
Overall i like your idea, a little more because of biase but you should spend time getting to know your tools.
Sonic's running animation is backwards.