Sonic Adventure 2: Battle , a complete conversion of the Dreamcast game, was released on Gamecube in 2001 . The console exclusive features include improved visuals and two new multiplayer modes - Kart Racing, Hunting, and Chao Karate. Additionally, players can grow their Chao and trade them with friends using the Game Boy Advance game Sonic Advance .
The story revolves around Sonic's quest to stop Dr. Robotnik from taking control of the Chaos Emeralds. Players must choose between teaming up as Sonic or joining forces with Dr. Robotnik, Shadow, and Rouge to hold Sonic back while collecting all the Emeralds for complete control.
Gameplay involves completing 150 missions in total, which include 30 levels across multiple characters. The game features a mix of action and adventure elements, allowing players to explore various environments and engage in combat with enemies.