What an awesome concept and execution on it as well! Fantastic job! The design is also fantastic, the core concept is taught just through playing the game and figuring it out on your own. For most of the levels I thought the rooms followed a strict time based pattern, although it felt like the last couple were more zany than time based (still good puzzles tho).
I'm also surprised you got a screen-reading shader to work on a web build in a browser at all! Had to remove the web build of my game cause the the whole screen was black on all the browsers I tried (Chromium or not).
Honestly, brilliant job, I'm quite impressed! :)