Board Thread:Wiki Discussions and Support/@comment-26010916-20150211152912/@comment-26112212-20150212145739

Naruto is Kurama's Jinchuuriki so he can go Tailed Beast mode even in RSM like in the Last time the conjoint Avatar, he has chakra of all the Tailed Beasts not whole Tailed Beasts to undergo full transformation, Kurama's transformation cloak is the result of Naruto's chakra + Kurama's chakra, Naruto could also go Tailed Beast mode but it resulted in chibi version during his training with Killer B. Killer B and the rest of the Jinchuriki can go full transformation. So no he can't go other partial transformation except with Kurama (chakra arms). Naruto can access Kurama's chakra with free will because he is Jinchuriki and when he knows he can't go Kyubi mode he asks Kurama to prepare some chakra meaning he can talk to Kurama also.

Now you are stating that Naruto called out for help but it is incorrect it was actually Beasts calling out Naruto in various situation and they were lending him power. It is described in panels so that we can know which beasts power is the Rasenshuriken made from. Naruto can do shadow clones without all the beasts during the fight with Kaguya. And why would Kishimoto insert Bijuu names in "We will", here We refers to Naruto and Sasuke and that was implied when both of them were shown together in this new mode. Now don't get me wrong but if you are going in too much detail in RM/Kyubi mode and you are comparing that with RSM/SPSM. Not stated in databook is not enough reason to remove nine tailed beasts in the article. If it was stated that nine tailed beasts are NOT involved and only Hagoromo's gift (that's what you like to call the only Hagoromo exclusive power) was involved then we would be removing that as we just state what happens not manga not databook. Databook, guidebooks are just to help clear some confusion. Actually sometimes databook does not mention everything e.g. There is no entry for Danzo's summoning. It does not mean he did not perform summoning. The error counts if something was stated in the databook and actually contradicts the manga. At that time we go with databook explanation. Missing the point "all tailed beast" in RSM is not legitimate reason.

Do note that all the Tailed Beast were shown in all Bijuu RS. And also they were present before Hagoromo and they were repaying him for the help he did in the battle because he freed them from chains and he gained cooperation from them. If that's not it then what is the purpose for them assembling in circle together.