Oh cool! - I love that kind of game!
Any way to download it to play on a handheld or on a MiSTer?
Thanks for your comment, David!
I've just updated the page to include a downloadable ZIP file (Source Code & Assets). It contains the Python/Pyxel source code and the level data. If you have a Python environment on your handheld or MiSTer, you should be able to run it!
Hope you enjoy the game!