Finally, a good raw flash...
I like your work. The graphics were rough and hand drawn which gave it some appeal. It was stylish, and filled with fights, sprinkled with crimson with reckless abandon. The sound was a bit odd. I was pretty sure I heard Ryu from Street Fighter do a Hadoken.
Now, here is some suggestions for improvements. I know that stick figures are easy to draw, but can you draw something else? You don't need to for this series, since it is about stickmen, but I would like to see some other flashes which didn't involve stickmen.
How about introducing some comedy? I know its hard for this sort of serious flash, but you should try and have a laugh with it. What about some voice acting? That would be reasonablly difficult to do, but it will give the flash, renewed appeal, and possibly daily feature if your lucky.
I await your next flash...eagerly.