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