It's ok, not excellent.
I liked the animation, but the voice acting was below average. I would have liked to see the whole final fight. It lacked a originality, especially by using a krillin ripoff as the bad guy.
Another thing some people have pointed out is the fact that you seem to be a little confused about the whole samurai deal. It seem the character was more like a ninja. Samurai would never sneak on anyone (this would be considered dishonorable).
This is intended to be constructive critisism. I don't like flaming you if you actually deserve it. I actually find flaming childish and ignorant. I can see that you put a lot of efford into that and I admire you for that. I just thought there were some details that you probably can improve for your next movie.