Most folks tend to divide Sonic history in two anyway; his classic period and his 3D period. Sega are releasing a game, to celebrate Sonic’s 20th anniversary, which unites two separate incarnations of the blue spiky roller representing said periods, dividing gameplay into both 2D and 3D sections. We have been misled by previous promises of a return to form, but this trailer does look pretty ace. Lets hope we are not building up to a great big let down…