up+ down arrow keys, spacebar, and most other hotkeys still worked while playing the game. these werent used in the control scheme obviously, but it was very easy to accidentally jump to the bottom of the page whereas most games require me to click back on NG in order to scroll, etc.
that first button was nearly invisible. later on in the game it might be fun to hide them more, but i feel like for a tutorial/intro, it wasnt a very good choice to put that giant pillar right above it.
also the crate really didnt stand out. i thought it was the switch or just background.
the 2nd larger switch or w/e glowing floor segment really, really looked like it was going to hurt me. i'm beginning to notice a pattern of many elements of the game being somewhat unclear lol. its not like any of these problems were frustrating or hard to surmount, but i think it'd be a smoother and more aesthetically pleasing experience if the visual aspect was more clear and presentable.
footstep noise was a bit too loud, IMO
graphics in general were nice, music was calm and atmospheric.
i think this'll make a great game once you start adding some more complex puzzles, but it was a fun few minutes for now. good job :)