The opening scene to the Chaos Trials shows Sonic the Hedgehog running. He soon encounters Dr. Eggman. Thinking that Eggman will just waste his time, Sonic transforms into Super Sonic and battles Dr. Eggman while he is using his Egg Dragoon robots. Sonic defeats the mech, but Eggman extracts the chaos emeralds out of Sonic, only to have them stolen by Fawful. Sonic is about to chase down Fawful when Master Hand jumps down from the roof of a building and knock Sonic across the city into another building. In that building, Sonic see Shadow and they team up to stop Fawful and regain the Chaos Emeralds. (Name of Stage: Central City 1).