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