Looks like something new...
As someone else did state, it reminded me of Pukka too. But you're animation has a little more detail. I think the timing needs to be a bit faster as it has it's quiet awkward moments between the punchlines. Of course I could be wrong, but nether the less I still enjoyed it. =D
P.S. When the Human gets injured and starts chasing, that song was also used in Samurai Champloo! Sneak Chamber by Tsutchie.