Reminded me a lot of some of the quick-shot productions me and my friends used to do back then! It was very satisfying to do these little single-screen things, sometimes in a single day/night, that were perhaps (eh) less about showing off massive technical chops (never my forte, especially not back as a teenager) and more about mood, sometimes humor, or simply just ... saying something. Then when the thing was done, you got to start spreading it by (of course) using your modem and uploading it to some choice bulletin board systems.
Amazing that Datagubbe (which by the way is translated by the author [1] as "old computer fogey" although I feel the Swedish word "gubbe" is really hard to translate well) wrote this in AMOS by the way, I used that a lot but mostly for tooling and general playing around, never for any released productions, they were always in assembly.