If you're a fan of the series, you're definitely going to love this one. Another great addition to the Ninja series.
Despite the beautiful graphics and luscious architecture, the story does lack in depth. The story seems as though it were thrown together and not given too much thought. Another area I believe the game is lacking in is puzzle elements and things like that. The game is pretty much straight forward, hack and slash. There is even a button (R1) that shows you exactly which way to go, even right where all the item chests are. Following suit, the boss battles, though very awesome looking, are pretty much just a regular fight, no tricky ways to take them down or things to figure out really.
Despite these few problems, the game is still a lot of fun to play for returning fans or new players. The game has both single player and team missions and weapons for these team missions, which are earned through completing the levels on single player. All in all I would definitely recommend this game, hacking your enemies to bits with an array of different weapons is very addicting. Once you start playing you won't want to put the controller down. A really great game, so I give it an 8.5.