Naruto: Ninja Destiny will take players from the beginning of the Chunin Finals all the way to the end of the search for Tsunade and her rise as Hokage, so you can expect to see a lot of good, high-energy fights. The game's Story Mode is a series of the fights portrayed in the series interspersed with story segments consisting of still images with scrolling text. By the end of the story, you will have unlocked 13 characters, including One-Tailed Naruto, Orochimaru, Tsunade and Jiraiya (those last three being exclusive for the American release).
The other two modes, Battle Mode and Wireless Battle Mode, are all about taking the characters you've unlocked and going up against either CPU-controlled opponents or friends in the same area as you.
Fights are interesting because characters can perform not only their heavy and light attacks and combos, but also, given enough chakra, Jutsu's that are specific to their character (like Shikamaru's Shadow Possession Jutsu or Naruto's Shadow Clone). But what makes the fighting system for Ninja Destiny is the collection of items you have available to you. On the bottom screen, there are six boxes, each one displaying a different item you can use. These items are everything from throwing weapons to life recovery, armor or Jutsu Locks (which keeps your opponent from using their skills).
The use of items in this fashion is really different from most fighting games in general, and Naruto games specifically. While a lot of the game felt very standard as far as 3D fighters are concerned, the items give the game a slightly different feel and keep the game interesting.