great for the first submission
Well, you said this one had no story, and a story would have shortened the action so I won't complain. I am a sucker for a good story, along with a lot of the other people out there. Anyway, most of the stuff that could be improved is pretty obvious. You probably heard more than enough about the background so I won't add on. I would like to say that you chose a good song for the battle. I hope to see some of your work later on. Just improve on the obvious things and continue making whatever you're making. BTW, are most of you're flashes going to contain sonic sprite battles, because if you plan to make this Evil Sonic into an actual story (which would be a good idea), you should try some dark sonic or dark super sonic sprites. Just a suggestion. Anyway, you're future here looks bright. Happy animating. (Damn that was long!!)