That was really fun! The physics are a bit iffy at times, but the movement is engaging and responsive; getting faster and more confident with each attempt was rewarding. It was also quite stimulating figuring out my next steps to make it up the cliff. I was also pleasantly surprised that stamina regenerates while on the climb.
One problem I noticed is that the timer for deactivating the hooks on the snow traps doesn't stop when you connect with ice. If you connect with a snow trap, and then quickly disconnect and reconnect to an ice patch, the hook will detach automatically after the timer has elapsed.
Volume controls are much appreciated, but the default volume is a bit loud; it regularly peaks the audio above +0.0 dB. I once recorded a peak of +2.2 dB!
[[Sometimes, when I didn't move my mouse, my facing would start to drift to the right. I haven't been having that problem with my mouse, so there might be something weird with the input.]] [EDIT: 8-20]: I am retracting this statement. This appears to be a Firefox related problem with Unity WebGL that doesn't happen on Chrome. I apologize.
While the stamina mechanic was intuitive and well-thought out, there could be a clearer indication of when the stamina meter is full enough to jump.
All-in-all, it felt great getting to the top. Fantastic! Great work!