This game rocks. I feel sorry for Naruto haters because they will never get to experience this fun game.
Basically this game is a fighting game kind of like street fighter where you have to beat the living crap out of your opponents. The is 40 characters in this game and a lot of stages. The stages are multilevel so when you send your opponent flying you will go to a second part of the stage. The game is normally pretty easy but in story mode it can become just plain hard.
As i said earlier you have 40 characters and a lot of stages. There is also several modes like mission mode and score attack. You start out with 8 characters and 3 stages plus a few modes. You will unlock more characters and stages with ryo which you earn from doing battles and story mode. You will start out with 50,000 ryo plus another 50,000 if you have any of the previous game on your wii memory. This will enable you to buy some characters, stages, or modes from the start. The developers also threw in some characters from parts of the story after the game. These characters are sai, yamato, kakuzu, and hidan.
The story mode is easy at first but it can become really hard. It covers the first 31 episodes of the Naruto Shippuden series. For those who watch the anime or read the manga will probably know the story. Basically an organization known as the akatsuki kidnaps a village leader who has a demonic beast known as the shukaku sealed inside of him. The guys name is Gaara and he has the power to control sand. The akatsuki's goals are to get all of the tailed beasts and use them to control all of the wars. Naruto, who also has a tailed beast inside of him, sets out to save gaara and fight the akatsuki and obviously the akatsuki tries to capture him.
The only bad parts of this game is that the story mode can be really hard and that the graphics arent that good. It also has a laggy wifi.