More characters but at a cost.
We all love having a diverse character lineup in fighting games but with a large amount of characters balancing issues start to be a problem.
Some characters have advantages without disadvantages, others have advantages with disadvantagens. Gaara has increased defense/ long range with decreased speed and attack, a good balance. Kankuro has long range/ increased defense and no disadvantage. Characters who use longe range abilities have advantage because they already have their abilities out while others must activate them and only last a few seconds. Their is no fun in using a special jutsu to activate an ability you will use for a few seconds, this if you use it in the begining because if you use it later the special jutsu will have already left your opponent with almost no life.
Then we have the special Jutsu's which are fun to watch but decide fights and most begginers depend on them. Later on many decide to "ban" them from fights while playing agaisnt friends to provide longer and a more interesting fight in its whole.
Throwing and other techniques thow provide great counter to those who like staying in one place with the R1 button pressed, thus not allowing him to "turtle" much.
The game doesn't evolve much from the first.
In its whole it is a good 7.0 no more no less.
If your a Naruto fan however it is a must and will keep you entertained. At least untill the new one comes out.