Naruto Shippuden episode 114: Eye of the Hawk.
Yes , he fought Orchimaru in Naruto for the sake of sasuke.
sasuke kills him in episode 114
No it is sasuke.
He and the other sound ninja fight Sasuke in episode 109 (An Invitation from the Sound).
no SASUKE killed orchimaru.
episode 1001
in a lot
that episode does not exist
episode 203
Episode 115.
episode 115
naruto fight against sasuke