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