I imported this game and it was tons of fun. I has a few cut backs in compairison to the first american PS2 release but these seem to be due to the prossesing limitations of the PSP. But all in all I enjoyed this version far more then the PS2 versions I have tried, the on screen action was far less clutered then the PS2 ones and it had a story on par with the Naruto movies. So I would highly recomend this title for any Naruto fan with a U.S. region PSP with a small grasp of the Japanese spoken language.
I fun four player beat 'em up featureing a huge number of Shonen Jump characters. My only problem with the game is that if you dont have friends to play against it can slowly get a little boaring, so my solution is to pester friends to buy it as well.^_^
