For years, humans and reploids have lived together in harmony. That was until the evil Sigma transformed reploids into dangerous Mavericks who go berserk and wreak havoc on the world. Now total chaos ensues! You control Mega Man X, the famed cyborg and Maverick hunter, to battle Mavericks and restore peace. Along the way, pick up valuable DNA ?Junk? to build new weapons, bosses and even a new level.