You can't buy a lot for just a buck these days. But Barrel Rider Games is in the business of giving you a class for a buck.
Not a bad deal really. I used to spend $3 for a Dragon magazine back in the day, often to get a new class.

This time BRG is giving us a Ninja class. Part thief, part assassin and part ranger this class has everything you would expect to see in a ninja class (almost, and I'll get to that). I have been following BRG classes for some time now and each of these pdfs gets a little bit better. So I am pleased to say that the class book here is complete. Saving throws, attacks, xp per level, and all the special abilities of ninja are here and ready for you to drop it into Labyrinth Lord...well like a ninja.

I only noticed one small, tiny thing. Typically with a ninja class we get a number of new weapons. This doesn't have those. I did not down-grade the pdf because of this because it is outside of the scope of the call books and that material is easily found elsewhere.