This is a fun little game, reminds me of QWOP! If you were to develop this further, I'd focus on UX/readability: I had some difficulties getting up my first ledge since I had a hard time telling which circle corresponded to which limb in the starting position but got it eventually. I also didn't realise that the brown/red crags cannot be grabbed onto and that created a bit of frustration. Overall, great result for a jam!