All of the Jinchurki are playable characters in Naruto Shippuden: Ultimate Ninja Storm 3. You can fight in human form and as a tailed beast. When your character’s physical strength is low you can activate Tailed Beast form if you’re a Jinchuruki like Naruto or Gaara.
Famitsu also shared a screenshot of Crowd Battle mode where one character, in this case Darui, fights multiple enemies at the same time. This is a change from the other Naruto Shippuden: Ultimate Ninja Storm games which were one on one fighting games with support characters you can call in.
Naruto Shippuden: Ultimate Ninja Storm 3 comes out on March 5 in North America and March 8 in Europe.