Is there a way to possibly fail a free fall jump?  Apparently yes.  The design of this is to jump roughly from 30 feet up and land on your butt on this giant airbag.

Yep I screwed that part up and twisted my ankle.

The thing I guess I didn't realize is that I've never been in the situation to change my direction while falling through the air.  At least not in that direction.  I had decided I was going to take a running jump and then roll backwards.   I had too much forward momentum.

Ouch.

It may not seem like it would be much of a rush, but I can promise you that it really is.  At first I thought it would be nothing, but as soon as I got to the top I could feel the adrenaline pumping.  The fall felt like a roller coaster drop times 10.  Definitely worth trying if you get the chance.   However, learn from my mistake.