It's a sick game.
It tells you at the beginning: You don't know what you're getting into.
It took me a couple of days to finish all 30 rooms. I had to resort to YouTube on a few occasions, because I couldn't figure out how to do it. The realization is so hard that it doesn't matter if you know exactly what to do. It drives you crazy.
Some can finish the game with zero deaths. My personal best so far is 11 deaths.