So I had to play the WebGL version, as the downloadable version's mouse sensitivity was extremely low to the point of being unplayable. A shame, because I could see that the lighting is much nicer in that version, and it had a better framerate. If you're debugging the sensitivity issue, I'd actually start there, as there's a good chance that it's framerate bound.
The game itself gives me old school 3d platformer vibes. Though, I'd like a little more traction, as some areas required precise handling, and it was difficult at times to get the Roomba to go where I wanted it to go.
But still, a solid game and other than that issue with the mouse sensitivity I didn't find any bugs.
Also, your level is friggen huge! It got a good chunk of time out of me exploring it all, so well done 😁