http://www.hokagesroom.com/naruto/link.html?i=hmDp2Y
http://www.hokagesroom.com/naruto/link.html?i=5wreAW
Relese date: Augest 28th 2007
Offical Website:
http://www.hokagesroom.com/link.html?i=mc8oId
Features:
1st ever 3 on 3 Naruto team based gameplay
ad hoc multiplayer
game sharing
upgradeable player profile
Character list
Choji Akimichi
Gaara
Hinata Hyuga
Ino Yamanaka
Itachi Uchiha
Jiraiya
Kakashi Hatake
Kiba Inuzuka
Kisame Hoshigaki
Might Guy
Neji Hyuga
Naruto Uzumaki
Orochimaru
Rock Lee
Sakura Haruno
Sasuke Uchiha
Shino Aburame
Shikamaru Nara
Tenten
Tsunade
What makes this psp game impressive is that it's more then just a scaled down port of Ultimate Ninja 1 or 2. It actually adds it's own twist to the game by allowing you to fourm teams instead of always fighting one on one.
The only other Naruto game I can think of that does that is Clash of the Ninja 4 which will never make it to North america (shame really since it's better then Clash of the Ninja Revelotion by a mile)
The only downside is that it's only got 20 character so they took a couple out from the Japanse version for no explicable reason. Still that's not half bad for a handheld fighting game.