Shadow

Very Confident, Loyal, Dominant

Shadow the Hedgehog (シャドウ・ザ・ヘッジホッグ, Shadō za Hejjihoggu?) is a character that appears in the Sonic the Hedgehog series. Characterized by his sharp attitude and strong sense of purpose, Shadow is a recurrent arch-rival of Sonic the Hedgehog, whom he resembles and with whom he shares many abilities. His trademark power is Chaos Control, which allows him to warp time and space using a Chaos Emerald.[7][8][9]

Shadow is the "Ultimate Life Form", created aboard the Space Colony ARK over fifty years ago by Professor Gerald Robotnik. He is the final result of Project Shadow, a government experiment that was only completed by infusing Shadow with the DNA of the alien Black Doom. After his birth, Shadow befriended Gerald's granddaughter, Maria. However, the Guardian Units of Nations (G.U.N.) deemed the project a threat and raided the ARK, resulting in the captures of Shadow and Gerald, and the death of Maria. Driven to madness, Gerald altered Shadow's memories to one day seek revenge

Being Sonic's polar opposite personality-wise, Shadow is, bluntly put, a brooding loner. He usually acts with a cool and businesslike indifference, only occasionally showing his vulnerable side. He is rarely seen with others for an extended period of time and usually distances himself from essentially everyone as a natural introvert. He is usually blunt and does not speak much, but he always knows exactly what to say in combat. However, Shadow never bluffs; if he makes a threat, he has every intention of carrying it out. Tying into this attitude, the Japanese script has his self-pronoun be the more humble "boku", with his pronoun for others switching between either "kimi" or "omae" depending on his mood.

As the most violent and merciless character in the series at times, Shadow's ruthlessness and aggression leads to enemies never treating him lightly. Alongside his dark and violent demeanor, Shadow can be smug and stubborn. He usually treats others in a very callous manner, throwing in his opinion no matter how cold-hearted it is and not caring for whatever the response is. Shadow is also shown to have a sharp wit; during the Space Colony ARK incident, after being called a faker by Sonic, he replied that the latter was not worth being considered his fake.

Just like how Shadow's motivations are never simple to understand, he spends as much time grappling with his own inner demons as he does with his rival, Sonic. In the past, Shadow has had a degree of mental instability, in particular post-traumatic stress disorder. This was demonstrated by his instances of post-traumatic flashbacks to Maria's face prior to and during the events of the Black Arms incident, though it could be argued that the instances of the latter game were simply an effect of his amnesia. On one occasion, at the time of the Space Colony ARK incident, seeing police sirens flashing caused him to intensely flash back to the massacre aboard Space Colony ARK and in particular Maria's death. Even prior to the events of the ARK raid, Shadow demonstrated some degree of self-doubt, most notably expressing frustration over how, despite being created as the Ultimate Lifeform specifically to act as a means to cure various maladies, he is still unable to cure his friend Maria, and also admitted to Maria when she desired living on Earth that he's uncertain whether he even has a place on the planet. Similarly, largely because of his being created with Black Arms DNA, Shadow during this time also showed signs of self-loathing, to the extent that he even went as far as to view himself as no different in overall nature to the Death Leech in containment before being reassured by Maria that he does ultimately have a heart.Shadow was soon able to overcome this in the Black Arms and the Emerl incidents, during which he chose to move on from the past yet keep Maria in his heart. In fact, his personal journey since being awoken by Eggman has had him confront the shackles of his past, such as ties, fate, and memories. Since then, it appears as though he is reaching a point where he can "do as his heart desires" in his own way.