A work in progress project using Z180 machine code to create a Space Invaders style game on a 16x16 dot matrix LED display. There’s also one update: Aliens can now shoot back.
Great! And just 16x16. Currently no sound.
He has some few more interesting videos. Similar with Game of Life. And other Z80 projects and a homemade Z80 computer. But there’s no link with schematics or code.
Also nice is a 24x16 Game of Life with a Flip-dot / Flip-disc display and so nice noises
That user has a homepage (in German) but good photos and videos