MakerBot plays Tetris Answered
YouTube user belakor110 has posted this video of a MakerBot playing the Tetris theme. According to the brief description, this is done using gcode.
This reminds me of the song "A Simple Text File" by Man or Astroman? Check out that video here as well. The video is just a still image, but I can vouch for its legitimacy. I saw the band play the song in concert with just a beaten up ImageWriter II in front of a microphone.