My dad is the best gamer I've ever seen

He plays on the hardest difficulty without losing his head over it. He plays it so many times, conquering every stage at 100%. The color-coding of the bricks appear to have literally no effect on him - he takes down every level without running out of hearts. He conquers the hardest bosses over and over. He's just getting better and better. (i.mean the simplest one - Tetris)