Sonic Adventure DX is an enhanced port of the original Sonic Adventure for the Sega Dreamcast. Released for the Nintendo GameCube in 2003, this game follows Sonic the Hedgehog and his friends as they try to stop the evil Dr. Eggman from unleashing Chaos, an ancient evil tied to the Chaos Emeralds. The game is well known for its fast-paced platforming gameplay and 3D environments. It includes several playable characters each with their unique gameplay styles and storylines. As an DX edition, it features improved graphics and additional content.