this is such a great platformer, it boggles the mind to see people writing bad reviews about this little gem.
the gameplay itself is simple. you are a ninja devoted to the way of n, and you have godlike speed and power, due to a very fast metabolism. however, you also die every two minutes. sometimes this game gets very difficult, almost making me freak out entirely, but in the end it's all much more rewarding than most 30-40 hour games.
N started as a little flash program here on the Internets, and then slowly became a downloadable game, then an x box live arcade game, and finally it's here, where it belongs, of us gamers.
on top of everything, it sells for about $20, and it has lots of replay value, so you are definitely getting a good deal here. to close, I'd just like to state that I hope this review helped along your way.