Sonic Generations footage has something old, something new, and two blue things

Description

Hey, your old 16-bit buddy, Sonic the Hedgehog, is back! Yes, he brought along modern and gangly Sonic, but it'll be fine if you're all just chilling on the couch with some beers. Maybe it won't be awkward if old Sonic gets up to go the bathroom, leaving you alone with new Sonic for a few minutes. So ... uh ... how's it going? Still seeing that pink hedgehog? Amy, was it?