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