Hackers turned MIT’s Green Building into a giant, playable, and multi-color Tetris game. A console allowed players to move, rotate, and drop blocks.  The building is tall and narrow with lots of little windows all in a perfect grid.  The game was controlled wirelessly from a console pad at ground level. Watch the video to see the game in action. The 21-story building, measuring about 95 feet tall, has windows aligned in an 18 x 9 grid, which is close enough to the typical 20 x 10 cell space Tetris is played on, according to Gizmag.