...is skill, Chaos Control, using up the last of his energy and sending him falling to Earth, seemingly dead.
In Sonic Heroes, Rouge discovered Shadow in a stasis tube in Eggman's secret base. Suffering from amnesia and unable to remember anything except his name and brief images of Maria's death, Shadow joined forces with Rouge and E-123 Omega in order to track down Eggman. After defeating the final Eggman robot, Rouge stumbled into a room full of what appeared to be Shadow clones, and deduced that Shadow was also a clone. Omega then walked in and stated that the original Shadow must be alive for clones to exist, and began to search for him. They then went on to fight Metal Sonic with the others.
In Sonic Battle, Rouge saves Shadow while they are investigating Dr. Eggman's secret base. Believing that he is a weapon, he insists the people of Earth must destroy him, but it is revealed that he ultimately has the heart and soul of Maria Robotnik and so is not the enemy of humanity. In one of Gerald Robotnik's journal entries, he mentions that "Project Shadow" was put on hold because of Project Gizoid.
In Shadow the Hedgehog, Shadow, still with no memory of his past, meets a malevolent race of aliens called the Black Arms and Black Doom, their leader, who seems to know Shadow. Throughout the game, Shadow has constant flashbacks of his past. Black Doom also bait...