Cool idea! This is some Getting Over It-tier nonsense: punishing, but still fluid.
The effective way to scale a wall is to climb, pick up and throw, but I found swinging away, retracting and throwing was way more fun. Too inefficient, though.
I though "pick up" would also retract the spear. Would've made this a lot easier.
But I really liked how each press of "climb" gives an extra jump! That's a lot of extra mobility.