I tried playing with a gamepad, but for some reason, my face buttons were not recognized by my browser. Not a problem though, because contrary to what others said, the keyboard and mouse controls are perfectly fine and intuitive enough.
I was able to cheat my way to the end in a few cases though; For example, I was able to just jump around the corner in this case. Whether that’s an issue is up to whether you like finding shortcuts for speedrunning:
Overall though: Great presentation, fitting music, nice difficulty curve for the puzzles. I had a lot of fun.