Even in the last fight Naruto was fighting without any special mode in the beginning , but Sasuke had his sharingan that's why he was dominating Naruto in the beginning
Other than that Naruto could had even used his SM but he didn't
Until the SOSP mode Naruto was not even using any special power besides his favourite Rasengan n clones
Other than that Naruto could had even used his SM but he didn't
Until the SOSP mode Naruto was not even using any special power besides his favourite Rasengan n clones