Heh - the video refers to Sonic's quills as his hair. Also, could that flapping-Eggmobile concept art be a scrapped Special Stage idea? It would certainly fit with the 3D perspective angle they were going with. Speaking of special stages, was that "Sonic circling the Earth" thing just a weird mockup for the video - as if it's saying "Sonic's popular all around the world"? Or does it have a connection to the Blue Spheres special stage, given that it was based on Kaio-sama's planet in DBZ?