Clone Snakes

After implanting Orochimaru's DNA, Kabuto developed a large amount of tiny snakes that multiply at a rapid rate and can merge into either a clone of another living being using a genetic sample or a larger serpent for combat. During the Chikara Arc, Kabuto not only created a clone Hidan, but also one of Naruto with Kurama's chakra as well. However, the clone snakes have a short lifespan, with what they form into eventually suffering a cellular breakdown within 48 hours of existence.