
The tutorial isn't terribly necessary -- click numbers in order, drag back and forth between lines pointing at each other -- but we recommend it, because it basically amounts to a little bit more game. There's a decent challenge to be found in some of the tasks, mostly because of the timer. The back-and-forth motions, for example, require some decent speed and accuracy. Of course, this is made somewhat more difficult by the substitution of a mouse for the stylus.
[Via Inside-Games]