Shadow the Hedgehog is a third-person shooter Sonic game starring Shadow the Hedgehog and other famous characters, such as Sonic and Dr.Robotnic for the GameCube, PlayStation 2, and Xbox that centers around the story of Shadow trying to recover his memory, a goal he has been pursuing since he first appeared in Sonic Adventure 2. At the beginning of Sonic Adventure 2, his memory was incomplete, and after almost dying at the end of the game, he lost it completely. He continued to seek knowledge of his past in Sonic Heroes. Now, in Shadow the Hedgehog, a three-way war rages between the Black Arms, G.U.N., and Eggman. Shadow takes part in this war while struggling to gather all 7 Chaos Emeralds, which he believes hold the key to his past. He finally regains his memory during his confrontation with Black Doom in the Last Story of the game. Shadow the Hedgehog was developed in the United States. This game features a mission-based style of play similar to Team Chaotix's story in Sonic Heroes.