Well made,
Graphics -well drawn backgrounds, simple colors, very smooth movements and some awesome effects, very nice animating.
Style - Not original, another stickman fight, but they never get old!
Sound - Music fit great, it was clear and didn't drown out the sound effects. Nice use of sound effects, they fit perfectly.
Violence - Some mild blood and etc, but it's only stickmen.
Interactivity - As interactive as a movie can get, clean play/replay buttons. Hover over disclaimer was a nice touch.
Humor - None, it's a action flash, although some deaths were sorta funny =].
Improvement - None in technique, but would be cool to see gangs of stickmen fight, not just 1 on 1 .
Hope I helped.