Really good job. Super tough though. I raged a couple times. I think sometimes my input was ignored too but I could be wrong. Like I was holding the button then it would not hold it after I did another thing. Also, I think as something that could help make it easier (maybe only on the beginner mode) is make it so that the button doesn't need to be pressed at the exact moment that its overlapping. Like I could hold the button and then when I swing for a new rock, it'd be easier to grab if it was kind of automatic.
And yeah it really did make my hand start to get tired lol. I made it to 24m and then my rope screwed me over by putting me on a piece of land with nothing to grab so I just hand to keep falling down.