Very nice experiment! I don't think I'd go too far with the invisible platforms idea in a full game, but non-Euclidean mechanics are always cool to mess around with.
Viewing post in A little portal platformer comments
Thank you! I was originally planning to focus more on the portals, but I’ve hit some limitations with the approach used (can’t have portals “loop” by looking at themselves). I’ll probably focus more on the interactive elements if I’ll be revisiting this idea later on (and likely remaking the project from scratch since I wasn’t able to achieve the art style that I wanted for it).