Shadow once had a close friend, Maria Robotnik, who was later killed by members of G.U.N.
Despite this, Shadow often worried about Omega's safety, like in Sonic Chronicles: The Dark Brotherhood, when he found that the Marauders kidnapped Omega and took him apart. Rouge often lends Shadow a hand during his missions of infiltration, and Omega was often used for heavy firepower. Shadow's closest friends are Rouge the Bat and E-123 Omega. Only by saving the earth together (Super Sonic and Super Shadow) did everyone finally get used to Shadow's image and Shadow became a sort of friendly (if very intense) rival to Sonic.
Initially he and Sonic were enemies upon their first meeting, at the time Shadow was not fully recognized by the public so when Shadow stole a Chaos Emerald, said public believed Sonic to be the criminal. He is the 'Ultimate Life Form', having near-unlimited power such as manipulating space via 'Chaos Control'. Shadow the Hedgehog is known as Sonic's rival in the Sonic the Hedgehog video games, first appearing in Sonic Adventure 2. Looks Sonic's age is technically in his late 50s and also considered immortal.
