Do you want to compare Metallo with The Flash? Discover the powers, weakness & weapons of Metallo and The Flash from Metallo Biography and The Flash Biography. Find out all about Metallo and The Flash.# Check out how is Metallo unique and distinct from The Flash. Discover their love interest, sidekicks, family tree and the movies and games list in which Metallo and The Flash have appeared. Find out everything about them here!