Use Google search, enter "Atari Breakout" (without the quotes) and then choose the Image Search facility... after a short pause, showing images you should get the old Atari Breakout game on screen.
I may not have played it in 1976 (but I had the Atari 2600 console by 1978/9 and Breakout was one of my first {probably included with the console} games!). Ah well, 5 minutes wasted...
Description of how to get it going found on *> TechCrunch