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.
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.