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