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