two hours
If you have a xbox or a playstation the go to the marketplace and the demo is free.
Actually the demo for both naruto storm games is on the psn or xbox live. It's out since last week. It is just the kakashi boss batle demo which could get old if you keep playing.
By buying the Pokemon Colleseum Demo.
I got the demo from a friend and they said they got it from the Official Xbox magazine
The demo will most likely feature the Naruto & Sakura v.s. Kakashi battle.
The official release date is 5th March for the full game. But i don't think the demo is still available. It is predicted that Naruto Storm 3 will be shipped in to Singapore on 7th March.
1/23/11
If you have a ps3 and a Playstation Network account, you can get the demo right now. Same thing if you have an Xbox 360 and your on Xbox live.
I heard it comes out September 2 2011 for japan first
Well i know in the demo for 360 your press Y and tap or hold B
for xbox its out ps3 you have to wait till december 2nd 2011
1st DEMO FREE