The Kokorogan is split up into two different abilities which each ability having it's own name. These two abilities are called Eye of Command and Eye of Telepathy.
Eye of Command manifests itself as "the power of absolute obedience," which allows him to plant commands within a person's mind upon direct eye contact. Commands dictated in this state are written into the minds of the designated targets once the sigil projects from his eye to theirs. The ability cannot influence the same individual twice, unless the command is removed.
Eye of Telepathy allows him to telepathically hear the conscious thoughts of anyone within a 500 meter radius. It is speculated that Rikudou has other powers of telepathy such as digging through a person's memories or transferring thoughts into another's mind. He does not need to maintain direct eye contact with his victim(s) and has no restrictions on who it can be used on. Rikudou can concentrate on a specific target to probe deeper into their thoughts and memories, but it decreases his effective range. He cannot read something if the target has no knowledge of it or has completely forgotten about it.