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