The visuals are very interesting, and pleasing to look at.
The animation itself is pretty unnecessarily boring and extremely long. It just consists of slow motion tweens and mostly zooming in the ninja's face. It started out pretty good, and I had a lot of expectations for this movie.
Then, it just started to become a very boring one minute film about this guy crouching and holding his sword with his palms at night outside in the rain.
My favorite (and everyone else's part I bet) is when he killed some guy off screen with his sword, and blood started spewing out blood for an extremely long amount of time.
As for all I see, this movie had so much potential, and it had a nice idea too! But it was executed poorly. For these reasons, I give this movie 3.5/5 stars.
Also, I accidentally voted 1 for this movie, so sorry about that.