Sonic Adventure Factsさんのイラストまとめ

When finishing Windy Valley in Gamma's story, after the cutscene with Angel Island opening up, rather than spawning outside of Windy Valley as you should, the Japanese version (left) spawns you outside of the train station. This was fixed in future versions of the game (right).

Various wallpapers from Sonic Adventure International's GD-Rom.

Due to the fact DX's Chao code was recycled from Sonic Adventure 2 Battle's as Battle was released first for GameCube, the game files contain leftover textures with drawings made of Dark Story characters that Chao would draw when having a high bond with any of the three.