Zetsu is made up of two different entities combined into one being, making Zetsu have a spilt personality; the two halves also converse with each other, and occasionally differ in opinion the black half(black Zetsu) is more serious, intelligent and harsh while the white half(white Zetsu) is carefree, easygoing, and seem to enjoy toying with others. They also communicate through their thoughts. He is able to phase through any terrain.