User blog comment:First comes rock/Hisoka coming to J-Star Victory VS!?/@comment-4932025-20140116114224

I've got some bad news for you, Hisoka is only a support character, while Aizen & Toguro are playable.

http://www.animenewsnetwork.com/news/2014-01-16/bleach/yu-yu-hakusho/hunter-x-hunter-rivals-join-j-stars-victory-vs-game

Hisoka was support in the previous collaboration on DS too.