We’ve known for a long time that the Nintendo 3DS version of Sonic Generations will feature a multiplayer mode for 2 players, but SEGA has never gone into any detail about it. Now, thanks to information on SEGA’s new Tokyo Game Show 2011 website, we know that the mode will also have online functionality for 2 players.
Other than that little nugget, there are no other new details. SEGA will be taking the 3DS and PS3 versions of Sonic Generations to the Tokyo Game Show in a couple of weeks time, so hopefully more details and media will be revealed then.
Source: SEGA’s TGS 2011 Website (Google Translate)