Press, aim, let go. Never stop climbing.
The forest floor
They have been coming up since the moment you started, and they follow your best height. Standing still lets them reach you. Falling drops you into them. Early on they are close behind; the higher you get the more rope you have, but they move faster.
The bar at the top fills as you climb. Cross a band and you are given something - a shield, a net, a rocket, or the swarm shoved back down. Every few bands is a safe zone that pushes them a long way back and hands you a shield.
Press T at any time to watch the game tune itself.
Every run puts a few of these in play, measures how long you lasted and whether you came straight back, and moves toward what keeps people climbing. ×n is how much evidence a rung has.