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