at Sonic Movies have established that the fast-moving, world-saving creatures are aliens from other planets. It was finally revealed in Shadow the Hedgehog Shadow has alien DNA on him in the game. But he was initially presented as a man-made creation when he debuted in Sonic Adventure 2 Sonic 3 Fully committed to the alien’s backstory. It is revealed that he was found 50 years before the events of the film when a mysterious meteorite fell on Earth. The investigating GUN forces found Shadow within and began experimenting on him in a hidden location on Earth, instead of Space. Colony Ark orbits the planet seen in the game.
Shadow’s backstory in the game is a bit more complicated. To the point that I’m not surprised Shadow made it easier with the film’s shorter running time. Sonic Adventure 2Shadow is revealed to be an invention by Eggman’s grandfather, Gerald Robotnik. The hedgehog is destined to be the Ultimate Lifeform, which can hold the key to immortality. Shadow the HedgehogIt is revealed that out of desperation, Gerald made a deal with an alien dictator named Black Doom, who used his own DNA to help the Professor finalize Shadow’s creation. In exchange for Black Doom’s help, Shadow would save the invaders from… The alien Black Arms has taken over the world. Shadow doesn’t know where he came from. Sonic 3So it’s still possible that Black Arms will play a role in future films once his origins are revealed, but Gerald Robotnik didn’t create him in this continuity. He only led a research project after he crash-landed on Earth.
