Think SPI displays are just for graphics and text? Think again! Using the fbcp-ili9341 library we can easily push pixels to an SPI display at 60fps which when combined with RetroPi makes it perfect for building mini games consoles!

I used an Adafruit 320x240 2.0" SPI display that's not completely supported so had to make some chages to the library itself. You will probably be better off choosing something else, but this shows that it can be made to work.

fbcp-ili9341 library: https://github.com/juj/fbcp-ili9341
Adafruit 320x240 2" tft: https://www.adafruit.com/product/4311
RetroPi installation instructions: https://retropie.org.uk/docs/First-Installation/