Phantom is a Reploid character from the Rockman Zero (Mega Man Zero) series. He serves as one of the Four Guardians under Copy X in Neo Arcadia and is an elite stealth assassin specializing in speed, deception, and surprise attacks. Calm, proud, and highly skilled, Phantom embodies the ninja-like role among the Guardians. He appears as an important antagonist in the first game, where he confronts Zero and helps enforce Neo Arcadia’s rule.