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