I'm glad so many people responded.
One more to add to mine:
When I was younger, somewhere around 10 I think, I watched my uncle take on all challengers in Street Fighter 2 at the local arcade by my house. He took down every single person effortlessly. Sounds simple? Here's the catch. He literally did it...
ONE HANDED!
Yes, he played SF2 arcade with ONE hand. He wrapped his thumb around the joystick and used his 4 fingers on the 6 buttons. And he totally destroyed everyone that challenged him, including the one guy that was known as the best at our local arcade. He only stopped when his hand started hurting but by then he had taken down each person at least 3 times.