Elpizo

Elpizo is the main villain from Megaman Zero 2.

Story
Elpizo was a reploid that worked for Harpuia in Neo Arcadia. During one of his missions, he went to a sunken library, where he found files talking about the Elf Wars and the Dark Elf. Harpuia suggested to him that he forget everything he had discovered in that place. During the time when Copy X, ruler of Neo Arcadia, starts to retire the reploids wrongly accusing them of being mavericks, Elpizo defects and joins the Resistance led by the scientist Ciel. After Copy X is defeated and Zero went missing, Elpizo is appointed by Ciel as the new leader of the Resistance, while Ciel is researching a new form of energy. Elpizo believes that only by destroying Neo Arcadia will peace come again to the reploids. Elpizo starts his operations to attack Neo Arcadia, when Zero is found unconscious outside the Resistance Base. Zero disagrees with Elpizo in hi way of thing, but help him with some operations to weaken the Neo Arcadia forces. Zero finds the two Baby Elves, which Ciel belives are the key to a new form of energy. Elpizo starts a full scale attack against them. Zero tracks him just to discover that his entire unit had been annihilated and that he was defeated by none other than Harpuia.

Elpizo is sent back to the base, but when Zero returns as well, he discovers that Elpizo fled with the Baby Elves. Seemingly being guided by the elves, Elpizo becomes obsessed with gaining ultimate power, seeking the Dark Elf. Zero tracks him down, stumbling across the X Guardians along the way, who were also after Elpizo. Elpizo invades Neo Arcadia, and manages to sneak on the guardians. When Zero finds him, he sees Harpuia kneeling to him, showing that the Baby Elves granted him more power. Elpizo enters the Shrine of Yggdrasil, where the body of X is secured. When Zero arrives at the place, Elpizo destroys X's body, which releases the Dark Elf, which grants Elpizo a power beyond comprehension. Zero tries to stop him and fights him. Zero defeats Elpizo, but he is too obsessed to admit defeat, forcing the Dark Elf to it's limit to grant him even more power. They fight again, but Zero defeats him. Badly damaged by the battle and with little energy left, Elpizo realizes that he was too insane to listen to reason and that he was wrong the entire time. The Dark Elf, seemingly changing from his corrupted state, bestows his power upon Elpizo, turning him into a Cyber Elf. Elpizo thanks Zero for saving him and goes away so that he can rest in peace.