Beat them to death with your own arm!

This thing is hilarious. They're not kidding about the learning curve, however, I just did a round where after a double-leg kick to the midsection, I accidentally managed to rip off my own arm as I did a flip, and wound up using it as an impromptu club upon landing.

Not sure if it's worth the $20 yet, but this was only my second game. Certainly good for a laugh though.