Really nice and addictive game! I just like climbing games: 0
It would be cool if you assign choosing characters to some keys. At first it was difficult to manage their jumps when you click on one character and then choose direction and accidentally click on another. I had that sort of idea about 3 characters. You could show colorized mouse and 3 arrows with the same colors. And then just click left, right mouse button or wheel to make a jump. Or at least assign choosing to keys 1, 2, 3 to evade this mis-input.
Also, I liked those risky moments with falling rocks that insist player to change positions to more safety.
Part with upside-down V pass I passed after a few minutes because I tried to swing like spider-man with two hanging characters :D (and I managed it)
I really enjoyed your game, thank you, waiting for updates!