I don't want to sound like a hater, but I'm not impressed with those moves. Half of that stuff I did in gymnastics, and we went a little further than that.
I was in gymnastics for 8 years, and it was much tougher than jumping off a 20' drop and land and roll. I used to do that stuff for fun in my old apartment complex, but I never thought people would be amazed by it. Try doing a triple backflip bouncing 50 feet above the trampoline, that would impress me.
These guys do have some balls, since a few of those put them in a position to get hurt, but if you know how to land correctly then you have nothing to worry about.
I was great on the spring floor, but ended up quiting because they wanted to do more dangerous stuff that I refused to do. They wanted me to do a double backflip with 2 twists, and I really wanted to prove I could do it. I stuck it a couple of times, but I also twisted and stretched the ligaments in my knees and ankles.
Then I shattered my ankle on a motorcycle, and that was the end of all physical sports for me. This is why the only sport I can play now is disc golf, but I like it more than all that other crap anyway..