I found this game on Juhana's list of Mindbenders. It was very unusual; I don't think I've ever seen something like this done before.
The whole game is about trying to understand what is going on, similar to games like Legion in theory but very different in practice.
Once I understood what was going on, I simply used a walkthrough to complete the rest of the game. The rest of the puzzles are only mildly interesting. But the main puzzle is very, very good.