Board Thread:Naruto Discussions/@comment-25369463-20140908104317/@comment-1512913-20140908143235

First time when Naruto used Tailed Beast Ball Rasenshuriken, most likely with help from Kurama, hence its reaction/response and the second time when Naruto used Super Tailed Beast Rasenshuriken, Kurama's was basic Wind Release. So unless Kurama contributed no nature/substance or whatever, then it did Wind Release.