Megalopolitan (メガロポリタン, Megaroporitan) is the name of a tremendously huge artificially intelligent mechanized hero which serves under the banner of one of the seven hero organizations, the valiance federation. Megalopolitan, also known as omicron city, is the one of the greatest and most powerful creations ever constructed by the genius inventor and iron league hero known as the armory. It is essentially a giant suit of automated machinery armed with countless weapons systems which takes on the form of a city.