I'm impressed that you were able to find this bug and that you took advantage of it to finish the game in these conditions, it makes me strangely happy. I wasn't able to reproduce the "hold left" bug, but I know what's going on.
to talk about your problems:
The timing of the rope is indeed short, when I developed this feature I thought it was a good idea. but it simply adds difficulty where none is needed.
the room on the top right hides the famous red bandana which disappears after a minute of play time, you have to be quick to get there, I'd still like to add a reward element for the daredevils who get there in +60sec.
I didn't put the controls in the pause menu, maybe that would have helped you to know whether you could press R to start again.
Congratulations again on your discovery.