Game controlNothing’s easier than playing Ninja Tooken !!
Like most of FPS, you have to use the"W, A, S, D" keys to move.
You can also use Spacebar to jump (or right-click), "1, 2, 3, 4, 5" for weapons and "Q, E, R, F, T" for jutsus... But you can also change your weapons or jutsus by rolling the scroll wheel up and down. It's very usefull, because they are all (what a coincidence!) grouped together...
Of course if you don't like this arrangement, you can customize it in game options.
Icing on the cake: you can also change mouse sensitivity in game options. Damn good, right ?