Spider Sticky Gold

Kidoumaru's sweat glands supply this substance, though it is unknown how it is created. It is strong enough to protect him from Gentle Fist attacks. He can also secrete it from his mouth to form powerful arrows and kunai. Depending on how much chakra he uses, it will change how powerful and how long his attacks will be.

Kidoumaru first used this when killing of Naruto's clones, making boomerang-like weapons to throw at him. When Neji Hyuga attack him with the Gentle Fist attack, he was able to defend against it, then bragging that it was able to protect him from any attack. He continues to use it as the fight goes on, mainly for offensive purposes.