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