Congratulation: If you made all other letters in alphabetical order, you are now halfway there – this is the 14th of the 26 letters.
In typical ninja fashion, this guy is quite sneaky: If you approach him from the front, he looks just like a plain and inconspicuous letter N. Only if you look at the side, you will notice that this is a fierce ninja ready to jump at you from out of the shadows.
Having the ninja clad in the black signature clothes is actually historically pretty inaccurate. The black ‘uniform’ originates with the Japanese Kabuki theater. However, nobody would recognize a ninja if it weren’t for the black clothes – ironically, as they were supposed to make the stage hands in the Kabuki theater invisible.
You will find the other 25 letters of the papercraft alphabet here.
Here is the template as a PDF file.
I got a request for a version without sword, suitable for small children – here it is.