Mega Man Zero

You have been tasked with providing the scientist Ciel, who is now living in exile, with assistance locating the origin of a new form of reploid energy. Take control of Mega Man’s close friend Zero, a reploid from the Mega Man X series who was corrupted by the Sigma Virus but eventually redeemed himself after 100 years of sleep. Conquer your foes and discover the source of the energy. Otherwise, you run the risk of losing the game completely. You are responsible for protecting what is good from the destructive forces in the cosmos.