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