Wow
Now, I'm not a really big fan of sprites but yours was pretty good. The thing that you might need to work on was when they jumped. They just seemed to float down, you know? Maybe they needed to do it faster, like the ninja! XD Anyways, I thought it was interesting. The action was fluid, unlike a lot of flashes I've seen, and the idea for the heart pounding and fade effect was unique, because I never thought of doing that in my own flashes. Overall, It was really good and think you should have made it longer. Keep up the good work!