Philadelphia - All the pieces have fallen into place for the designer of a giant Tetris game.
Drexel University professor Frank Lee has earned the Guinness World Record for largest architectural video game display. Again.
Lee and two colleagues created a computer programme to play the classic shape-fitting puzzle on two sides of a 29-story skyscraper in Philadelphia.
They used hundreds of lights embedded in the glass facades of the Cira Centre. All told, the "screens" totalled nearly 11 000m².
Dozens of Tetris enthusiasts played the supersized version in April using a joystick from about 2km away.
The record announced on Tuesday beat the previous one also set by Lee. Last year, he recreated the classic Atari game Pong on a side of the same building.