SEGA has revealed that popular nemesis Metal Sonic will be a part of Sonic Generations, acting as a "rival" character. What's more, he's getting his classic look, as seen in Sonic CD.
Not much has been revealed about Metal Sonic's role, but SEGA's choice of words -- designating him as "one of" the rivals -- seems to imply he'll be one of several past villains to make a comeback.
Metal Sonic's got a massive fanbase, so this is sure to go over quite well.
@SEGA [Twitter, thanks TimmiT]