Board Thread:Naruto Discussions/@comment-33485854-20180907234534/@comment-5407586-20180908204959

LegionZero wrote: Didnt one of the databook say Kurama Mode is just the complete version of NTCM and allows Naruto to uses TBB and enter Tailed Beast Mode? Yes.

As I see it, V1 and V2 are common to the jinchūriki of any tailed beast (except Shukaku and the Ten-Tails), while NTCM and KM are unique to Kurama's jinchūriki. I guess Naruto used V1 against Sasuke's Amaterasu because he didn't have enough chakra to enter NTCM at the time.