Well, he didn't necessarily invent the whole thing, but he was the first to dare to dream of going above 20 feet on a quarterpipe. Mat deserves a lot of credit for opening the doors of what we understand as possible.  This is the trailer for a documentary of Mat. He never got to ride Mega Ramp when he was healthy, but it was still an amazing feeling watching him ride it during X Games 13 in Los Angeles.