Over the years, Orochimaru has conducted various experiments on his own body, thus modifying it greatly. This in turn has granted him an exponential increase in his bodies physical durability, speed, strength, and survival capabilities. It is also because of these experiments, Orochimaru is completely invulnerable to conventional techniques. He has endured a flurry of punches from Tsunade's monstrous superhuman strength, a direct attack from Naruto's three-tailed state, and a direct hit from Sasuke's Dragon Fire Technique, all of which were able to only damage his face mask. Even being bisected by a four-tailed Naruto was unable to slow him down, as he simply reconnected himself. Other modifications include manipulating the shape of his body and shedding himself of it, to completely recreate and heal injuries. Thus, even if Orochimaru is unable to transfer bodies, he can easily heal and evade attacks, rendering him virtually immortal in battle. These abilities are otherwise known as, The Power of the White Snake.

 

   In his quest to gain immortality, Orochimaru has made even more gruesome modifications to his body, resulting in his natural form taking on the appearance of a giant, white snake composed of many smaller snakes. The snakes that compose Orochimaru's body can extend themselves to strike and bind targets, and if Orochimaru is sliced to pieces, the body can instantly reform, making him very difficult to kill. Additionally, the blood that is released by killing the snakes is poisonous, evaporating into the air and paralysing anyone who has breathed it in, something that makes long lasting fights against him a bad choice.