This animation was alright to say the least. This kinda did feel as a Sonic Short since that it was quick and had a punchline.
Animation's really basic. I would recommend having the background moving pretty fast when Sonic's running on frame.
Sound's pretty much out-of-sync. I would probably play the wall smash effect right on impact. In this animation, it was a couple frames off.
Although this was pretty good. :)