Copy X is a major character in the Rockman Zero series, serving as the intended successor to X and acting as the ruler of Neo Arcadia. He is a Reploid created to embody X’s ideals, but his rule becomes increasingly authoritarian as he tries to preserve peace through strict control. Copy X plays a central role as both an early authority figure and a key antagonist, driving conflict with Zero and highlighting the series’ themes of justice, identity, and the corruption of inherited ideals.