the videos looked crappy and skippy to me, unfortunately. I liked the footbag history section, though. only 3 names are mentioned in that whole thing; John Stalberger, Mike Marshall, and Tom Mosher.
We should all team up against him.
The key is all about those flying thingamajigs. Hit the good ones, and avoid the ones with red words (the ones without words are good). The strategy is all about learning exactly how to control the bag, and then how to combine knee and clipper kicks to avoid the bad flying things when you see them, coming (so try to stay on the right side of the screen, since they come from the left). You can do this with good timing when you see the bad flyer coming -- know how much of a difference the distance from a knee or clipper kick will make in timing the avoiding of the bad flyer.
I generally just do knee kicks, because I find the others inconsistant (they drop for no reason...), and I aim for just outside the elbow for it to always connect. Once you're comfortable with the controls I found that you can actually kick the bag in certain directions if you kick and move in a direction together, at once, at the very last moment.
Getting high scores is completely dependant on the double score flyers. How many points do you get from a ducking clipper? 40? :p To get 10,000 points, you would have to hit 250 ducking clippers, or you could just hit 11 double score flyers...