Sonic Heroes: Metal attack is a game going to be realeased in June 2010. Not much gameplay has been confirmed. But the plot is Meta sonic is back along with Metal knuckles and now Metal tails (super tails doll) to get back at sonic and his friends. There will be teams like Team Dark, Team Sonic and Team Choatix. There will also be the new addition of partners such as Rose Partners, Eggman partners, Future partners and the Choas partners.
The future partners include Silver and Blaze. Eggman partners include Eggman and Eggman nega. Choas partners are Chaos and Tikal. Others are unchanged. Team Metal is not playable but they are shown in scenes of the game and are also confirmed to be the final bosses.