I like it. pretty simple and down to earth. Brings back alot of high school memories of the stick man fights.
been a bit since i've seen stick animation like this. The animation was pretty fluent, but there are a few times the audio sync got off (mainly during the faster kick and punch sequences). It was barely noticeable, so you did a pretty good job with it. Other than that maybe try to make the fighting sequences a bit more complex and not so one-sided next time. These types of flash can be super entertaining if done properly. good luck on your next one.
Awesome, keep up the good work!