Here are some videos about Tetris the Grandmaster
The following video is a documentary on the tetris effect. The tetris effect is the name for a phenomenon wherein when people devote some much time to an activity, that activity begins to permeate as patterns in their thoughts and dreams. This documentary also features interviews from the owners and patrons of pier21, an arcade in Japan considered by many to be the gathering place for the best Tetris the Grandmaster players in the world.
The following video is from the 2016 charity video game event ran by the organization: "Summer Games Done Quick". This organization runs these events annually in order to raise money for Doctors Without Borders. This video shows some of the best Tetris the Grandmaster players in the world exhibiting the many features of the game.