I found this small tabletop arcade machine piece online. https://blog.codinghorror.com/the-raspberry-pi-has-revolutionized-emulation/
Should be a fun experience to set it up and get it configured. There's a large array of emulated systems we can setup. Anything PSX and pre era. Retroarch seems to have compatibility for multiplayer as well, so it should be possible to be able to build multiples of these units and have them interact.
We should totally build a prototype and showcase it, that would be awesome!
Oooh. I really like the idea of building the dueling Pacman. They have the four player pacman at Coin Op downtown and I'm always thinking about how we could definitely build it!