Monkey Crest

After having gone into his "version one"-type jinchuriki forms, Ryun will form the chakra on his head into two Four Tailed Monkey-like horns. He then charges at his opponent, striking them with a type of headbutt move. This strike is powerful enough to blow away the target's entire chest. The attack is straightforward, though, and can be easily seen through with the Sharingan or perhaps even the Rinnegan.

When Ryun enters his "version two"-tailed transformations he can perform a version of the Monkey Crest that used not cloak-horns, but the actual monkey's skull formed out of dense chakra bones similar to the ones found in Naruto's six-tailed transformation. This version is powerful enough to blast a hole through steel and severely damage an opponent's body to the point of being fatal.