For me Naruto Ultimate Ninja Storm was the BOMB but it could hav improvements for Storm 2
* More characters should be included next time
* The story mode has to be told in action and not in text
* The details of the Leaf Village should be better more people to interact with and special effects like butterflys'
* More minigames and use moves like rasengan to break walls
* Visit other villages eg: Sand Village
* Play as other people like Gaara vs Deidara
* And Online should be in the game