A goal I set for myself for easter 2018: get a Tetris game running on a 32x32 LED matrix panel. This one uses Arduino/Genuino Uno as controller, which is rather limited in memory as I experienced. Large parts of the project consisted of finding ways around those limitations. Maybe I'll do a Arduino Mega adaptation for more memory in the near future.
The panel's wiring is just like suggested in Adafruit's documentation. The rest is just a resistor ladder for the four control buttons.
A demo of the game in action:
Full source code of the latest version can be found on GitHub.