It took me a while to realize that I was supposed to click ENTER to even play the game. Try spilling the information about the controls and such in the description. Other than that, this game is pretty good. I couldn't get past Hunting Hills because of my lack of defense.
Also, I have some suggestions for the game. How about give the player some kind of system where they can progressively get more and more stronger and upgrade their arsenal with different jutsu or attacks. For example, Naruto can eventually come to learn the Rasengan or the shadow replication technique in this game to crush his enemies. Anyway, that's just a suggestion! Pretty good game.