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