I would enjoy these posts more if they actually documented how the game implementation works, rather than just dumping an assembly file for the reader to figure out.<p>Also, I don't find “fits into a QR code” all that impressive. QR codes can contain kilobytes of data (see: COVID certificates), which is considered a lot in the demo scene (e.g. Google "256B demo" to see some really impressive examples). I bet you could implement a fully graphical Snake clone in less than 1024 bytes.