I don't really understand Naruto fandom and I've dabbled in your annie-may. Maybe this pair of co-op trailers for Naruto Shippuden: Kizuna Drive will clear things up for me.
Yeah. No. Although at least I now feel comfortable putting it in the "portable MULTIPLAYER team battle action RPG thing" genre.
This particular PSP incarnation of the phenomenally successful teen ninja franchise has shifted impressive numbers of units since its June 2010 Japanese launch, and may even do the same in the US, where it released last week.
See the trailers below, thanks to Joystiq.