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