According to Obito Uchiha, for a Sharingan user to activate the Susanoo is a rarity. Susanoo is formed through the materialization of the user's chakra and as such differs in appearance as well as color between users. While the user usually remains grounded within Susanoo, it is possible for them to freely move around within its body, as well as levitate inside of it. The user can also allow others to enter Susanoo, or leave its body entirely. While Susanoo acts as a defense against external attacks, anything coming out of Susanoo will simply phase through it.