Prophecy

Naruto: Ultimate Ninja 2 RPG/Story mode will spoil stuff for you. It goes all the way to the end of Tsunade arc and I think they added a filler arc after that to increase game play time.

As for the anime, the filler actually starts at 135 it's just that the first filler arc picks up directly where the canon plot ends. The next 80 episodes, yes 80, are filler. The filler ends with Naruto: Shippuuden like onesnowyowl said.

Naruto: Shippuuden starts two and a half years after the end of Naruto. However, don't be alarmed, that time skip is the same as in the manga, you aren't missing any large chunks of plot.


Edit: Naruto: Ultimate Ninja 3 came out in March for the PS2, no PSP Heroes 3 game has been announced yet.

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