Start the game, "dies", try again, the same process repeats 5 more times. DAMMIT, this is so addictive.
It´s pretty difficult in so much ways, like when a couple of enemies attacks you at the same time, you can´t evade them or touch them if you´re bad in videogames.
But the difficulty it´s not the best part of the game, it´s the gameplay that makes you feel like a total badass cutting off enemies.
Ninja Gaiden Black is a newer version of Ninja Gaiden (Xbox) that fixes some bugs and add a new game mode plus make better sounds and a little things more.
The game is a little long but the difficulty makes it a more longer game and a more enjoyable experience, you will enjoy killing enemies but you will be a little tired of being killed every 20 minutes.
The bosses it´s other good part of the game, they are difficult so be careful and don´t forget to save the game every time you can, every single progress in this game is important.
In simple words, this game is difficult but very fun and cool, this game will provide you an invaluable experience that much games don´t have.