I love progressing through this game!
Unfortunately I've hit a complete stop - normally I have good reflexes and timing, but for some reason CHAPERONE -ERROR's tiles change also lag my device to the point where moving is completely guesswork.. the lack of a checkpoint or atleast a quick load button is also making it feel tedious.
At the time I wrote this comment, I was using an old laptop from late 2010's that ran well for most of the game until this level.
Sorry if my problem sounds so trivial..!