Really want to like this game, it's a cool core mechanic, but once you lose the starting momentum to a random offscreen physics quirk, unless I'm missing something you're screwed. I really enjoyed getting into the swing but it needed something so it wasn't so random and wasn't so repetitive. I get the intention to have momentum be something hard earned but I don't think the solution was this little control.
Also, going from two to three climbers didn't change anything as far as I can tell. Again perhaps I'm missing something?