The official Japanese web site of Naruto Shippuden: Ultimate Ninja Storm 2 has recently uploaded a video featuring Naruto fighting Kakuzu. The video lasts around 13 seconds, but it is an interesting watch!
The link to the video is http://www.bandaigames.channel.or.jp/list/naruto_storm2/game/game_story02_battle02.html#box_change2
It’s on Japanese server so it may take a longer then usual to start playing. Once it’s YouTube, we’ll make sure to edit this post for future convenience.