Ripping around a tight corner covered with loose glacial scree, I dig in, nail the nitrous boost and preload my bike's suspension at the top of a 45-degree jump. With a lurch, my ATV leaves the ground and launches into the air, floating hundreds of feet above the mountains of New Zealand before beginning its sickeningly fast decent. Being the cool-headed racer I am, I decide this is the perfect time to pull off a series of aerial tricks, including the Saddle Flip, in which I stand on my quad bike's seat and do a backflip in midair. I land it like a pro, bank some boost juice as a reward and speed off toward the next jump.