NPC Character of Choice: Hidden Phantom (goes by just Phantom.)
Game of Origin: Mega Man Zero.
Power: As a Reploid clone of the original X, Phantom is an extremely powerful warrior in his own right. Having his design based around X's stealth capabilities, Phantom's fighting style and abilities revolve around various ninja-like arts, such as stealth, deception and misdirection.
Weapons: Combined with his ninja skills he has a matching set of tools such as smoke bombs, a katana-like blade and a large shuriken which can break apart into several kunai and serve as a flying platform. His EX skill makes the whole background dark and throw 4 kunai in different directions. Together with the fact that he is the first boss in the first Mega Man Zero game with three health bars, arguably makes Phantom one of the most difficult bosses in this game.
Weaknesses: He has no known weaknesses. Though in this RP I would consider him to not be very tough in physical endurance, and physical strength. Relying more on strategy, and stealth to take down his opponent.
Appearance:

He stands at 5ft 5
Personality: Phantom has a calm, quiet demeanor. His major trait is his unwavering allegiance to his "Master X", displaying more loyalty than his three counterparts (none of whom were willing to sacrifice their lives in order to protect Copy X, possibly since they knew he was not really their "master" only a flawed replica of him). Phantom has no mercy for those who oppose Neo Arcadia. His sacrifice may be considered admirable, despite the flawed nature of its cause. Now since his "Master" is not in this world (at least he thinks so. When he discovers the real X is alive he will do his best to find him) he roams the world, looking for another reason to start fighting again.
Morality: Heavy Neutral. He travels alone, looking for another reason to fight.
Biography: At some point, Phantom and the other three Guardians were cloned from X's DNA; for exactly what purpose is unknown (and exactly when is unknown), though it may have simply been to be bodyguards for X as they have been for around a century in Neo Arcadia. At some point, the four became military generals of Neo Arcadia, responsible for the overall safely of its inhabitants, both humans and Reploids. Phantom became the leader of the Zan'ei Army, Neo Arcadia's stealth units and anti-Resistance intelligence unit.
During the events of Mega Man Zero he sacrificed himself to save "Master X" (Copy X) by self destructing in an attempt to kill Zero. He eventually became a Cyber Elf and entered Cyberspace to face Zero once more. Now he has been revived and brought into this world. A world without a master to serve, and without a nation to fight for. He now wanders the streets of Idaho with nothing but a ragged brown cloak and hood to cover his shame of having no one to serve.
Traumas: Not having a master, which caused him to stop fighting altogether.
Notes: N/A