Mike Szczys of Hackaday built 1-Pixel Pacman and wrote a blog post detailing its assembly:
I usually see retro-gaming projects like keno using tiny screens with a fair number of pixels (64×64) but what I really like is the look of making every pixel count. With this in mind I built 1-Pixel Pac-Man, the classic coin-op experience but with characters that consist of just one pixel. Playing a throw-back like this wouldn’t be the same without some vintage controls so I picked up an Atari joystick, patched it into a microcontroller, and started coding. Check it out.
Project details at Hackaday.
Check out the video after the break.
That’s using the SmartMatrix, which was developed right here in the forums: Controller Board for Large RGB Matrix Displays