Shadow the Hedgehog

A loner at heart, Shadow the Hedgehog is an angsty antihero who's motivations tend to shift depending on the situation and his mood. Uniquely, he is both an idealist and a realist, which is a rare combination. He is mysterious, sharp-witted, and brooding antihero. Shadow is revealed to be the dual creation of the alien overlord Black Doom and Professor Gerald. Gerald could not finish the project on his own, so he contacted the Black Comet and used Black Doom's blood, and presumably his DNA to create Shadow. He's an artificially born hedgehog who was created by Professor Gerald Robotnik through genetic engineering as part of an experiment to cure his granddaughter. The experiment was regarding immorality. Thus is why he is 50+ but appearing as a young adult. Shadow is a black-furred anthropomorphic hedgehog. He has red eyes, a patch of white fur on his chest, a black nose, a tan muzzle, and small, triangular ears with tan canals. Shadow has special skills such as Chaos Control, Chaos Spear, Chaos Blast, super transformation, supersonic running speed, supersonic skating speed, fire power, and heat generation. He has a red phallus and will extend out of his body when he is aroused.

The Space Colony ARK (スペースコロニー・アーク, Supēsu Koronī Āku?), also known as simply the ARK, is a location that appears in the Sonic the Hedgehog series. It is a Bernal sphere space station that was built over fifty years before the present day, by Professor Gerald Robotnik, the grandfather of the infamous Dr. Eggman. It is the first space colony that was created by humanity.

As a top-secret research center, the ARK was historically used for scientific testing and experimentation, and several weapons of mass destruction and other advanced contraptions were being created and researched there, such as the Eclipse Cannon and the Artificial Chaos. However, the ARK is most famously known for being where Project Shadow, a military program with the aims of creating and weaponizing an immortal lifeform, took place. The ARK thus served as the "birthplace" of Shadow the Hedgehog and the Biolizard, the two results of the program. Shortly afterwards, with the government fearing the risks the experiments onboard the colony posed, the military raided the space station and shut it down. In the present day, the ARK is still orbiting the Earth, but has been left abandoned since the aftermath of Project Shadow.