Borenstein harnessed himself between two trees 15 feet above the ground. With the Oculus Rift strapped to his head, he then demoed SkyDIEving, in which players virtually free fall from an airplane. Borenstein told GamesBeat that his time with the demo actually made him queasy and gave him a "stomach dropping" feeling.
You can watch Borenstein test out virtual skydiving in the video above. nDreams released an early version of SkyDIEving earlier this month.