In April 2012, MIT’s Green Building was transformed into a monumental Tetris video game canvas. Appearing mysteriously one Friday evening, the windows lit up in a colorful display of the popular puzzle. Players used a console erected in the courtyard to move, rotate, and drop blocks. The 295-foot-tall building, with its gridded façade of windows, proved the ideal vehicle for the Tetris game hack, an idea that took approximately four-and-a-half years to execute.