Developed by Sonic Team USA, Sonic Adventure 2 is being re-released for the PSN, and some Battle Mode DLC is coming with it. The game will feature two parallel story lines. The Hero story, and the Dark story line. After discovering the existence of a secret weapon mentioned in the diary of his grandfather Gerald Robotnik, Dr. Eggman infiltrates a high-security facility in search for this secret weapon, a black hedgehog named Shadow who claims that he is the "Ultimate Life Form," offers to help Eggman take over the world, telling the scientist to rendezvous with him at the abandoned Space Colony ARK with more Chaos that he learned about. Sonic Adventure 2 and the DLC will release October 2, 2012 on the PSN Store for $9.99, while the DLC will be $3.
Play all level 4 stages in Action Race, Treasure Hunter and Shooting Battle.
Beat all your enemies in Super Level in Chao Karate 1P mode.
Unlock all 180 emblems.