Shadow's capsule landed on Prison Island, where he was found by Gerald. She encapsulated Shadow and ejected him to the planet before dying, but not before she asked him to give the humans a 'chance to be happy'. They were able to defeat Heavy Dog, but just as they were escaping, Heavy Dog's pilot shot Maria, making her near death. When they found the Biolizard, they shut down the colony and attacked Maria and Shadow.
Once, he and Maria stopped the Artificial Chaos from attacking the researchers, but one day G.U.N. He wasn't sure what it was like on Earth, but he was certain Gerald wanted him for something connected with Earth. Once he was created, Shadow became friends with Gerald's granddagughter, Maria Robotnik. However, he finished creating Shadow anyway. However, Gerald learned what Black Doom was really after and developed the Eclipse Cannon. Black Doom agreed to help Gerald, on the condition that Gerald would bring him the Chaos Emeralds. Gerald Robotnik created him, but he could not finish the project on his own, so he contacted the Black Comet, which was going through it's circle visit.
Shadow was the final result of Project: Shadow. 1.12 A Second Chance to Settle the Score.
