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