Silver Sonic was one of many robotic duplicates of Sonic the Hedgehog created by Dr. Robotnik and Dr. Eggman. The original, Silver Sonic v1.0, was created by Robotnik to defend the original Death Egg and was built using data from Sonic's roboticized form, Mecha Sonic. Dr. Eggman's original Silver Sonic, Silver Sonic v2.0, was used to attack Station Square before being reprogrammed to defend that city. A modified and larger version, Silver Sonic v3.0, was first deployed to attack the invaders of the Death Egg Mark 2. Similar in design to the first model, its massive size is compensated by the ability to spin into a ball like Sonic and engage the blue hedgehog in hand-to-hand combat while deflecting most of his attacks. Another model, considered to be Silver Sonic v3.1, was later deployed ag