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