There was a good one called Sloppy Fight - the scenery was really well drawn, and the stick figures had shadows, expressions, etc. Plus, the action was a lot better, and good music that tied in with the plot was used.
I don't know why, but I find myself liking these flash movies.
I don't really thikn it's inapprpriate though....there's no blood shown, and the fact that they're stcik figures makes kids less likely to try it out on real people. Plus, it's a lot less violent than most films today.
(I mean come one, I found a flash movie called Kill Bunny, that had a samurai bunny chopping off limbs and head and everything to find Bunny Bill - that's juts taking it too far!)