The interaction on how to climb and the short time to react is something I have never seen before, well done!
I found it very frustraing though, often I wasnt able to catch the one I was aiming at and just launched myself back to zero. This is generally fine, its okay if its meant to be hard, but maybe you could have some more "checkpoints", just platforms that catch you if miss, but then again maybe you did and I just didnt get that far xD