

Adds the Chao Karate game in single player and multiplayer.The opening and title screen is changed to Sonic Adventure 2 Battle."Battle Mode" DLC - This downloadable content features the following:.Almost all of Big the Cat's cameos return in the port, except for his appearance in Wild Canyon due to a programming oversight.The game has been remastered with a display aspect ratio of 16:9 HD at 720p using the GameCube version's assets, although some of the cutscenes, including CG cutscenes, remain in their original 4:3 SD format however.The player has the option to purchase the " Sonic Adventure 2: Battle DLC," which upgrades the game to Sonic Adventure 2: Battle and includes all features from the GameCube version.

An online leaderboard feature has been added, allowing players to see where they rank in terms of their high scores in each Action Stage.Main article: Sonic Adventure 2#Gameplay New features
