You're watching MariFlow software in action. The player above isn't actually a real person at all, but a neural network which has learned to play the game. That's pretty damn impressive for a computer learning on the fly! All the training MariFlow had was watching 15 hours of Super Mario Kart footage, which is where it learned different maneuvers and methods of driving. As of right now, the MariFlow software can manage to grab the gold in 50cc, and that's without any assistance from a real person.