Smooth animation, and a funny execution of a good idea. I think this is the first time I can recall someone having an assassin that isn't a supersoldier/former ninjagod. I like that he's afraid, andthat he's unsure. I also like that the villain doesn't take him seriously at first.
I also love that most of the story and feeling of the character is told in his movements, rather than voiced.
The ending was hilarious too. Are you planning on doing more with this character?