Board Thread:Naruto Discussions/@comment-38812954-20191016022101/@comment-43403813-20191106163352

Except, Nagato was being controlled like a puppet. Kabuto was controlling what techniques Nagato used, experimenting with all the abilities of the Rinnegan. Kabuto even said: "There is that planet jutsu", and subsequently, Nagato used Chibaku Tensei.

Whatever Kabuto wanted to use, Nagato used it, as if he were a puppet.