You can see that he is all strapped in. Feet and everything.
They wheel him to the far right on the field.
They stand him up, and he begins to play.
And then they start rolling him across the field while he is playing.
It was quite a sight, but needed to be in video. So I pulled the camera down from my face and without my reading glasses on, started looking for the little icon that represents video mode on the dial on my camera. A few seconds later, I found it, and was able to capture the last bit of the stunt.