Sometimes code is written so well it just works.
Install fpc, then lazarus
Download Deep Platformer, compile it, then run.
https://forum.lazarus.freepascal.org/in ... 8.120.html
If I knew how to do screen capture on Pi's there would be a picture of it working here.
All done on a Pi4
One of my many things to learn was game design.
The Pi4 is powerful enough to do OpenGL games and with two screen makes for easier development.
Wonder what else just works?