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