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