This game takes things from old school games and gives it a new school feel.
It's sort of like Super Mario but you play as a ninja in a puzzled space and you have to reach the exits to pass the level.The only problem is your faced with hopping over mines out running laser beams,and dodging rockets.Which gives it a new/old school feel.It gets frustrating at times because it is so easy to die in this game,the good thing is you dont have a set amount of lives though.Which means you can die over and over on one level until you pass it or your Ds battery dies on you.When i first got this game it seemed very easy until i started unlocking new levels then it just became plain hard.If you like platforming games like Super Mario and other games of that genre then you should definately give N+ a try.You wont be let down.
Also if your interesting in trying it before you buy it you can easily play the older N game version on your home computer just go to google and type in N and you'll see where you can try it.
Hope this review helped