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