I was pleasantly surprised by the abundance of mechanics! The character controller was generally good—from what I noticed, it even has coyote time and jump buffering, great job. The sound was decent, especially the ice-crunching effect. Sound/graphics/gameplay—everything complemented each other well.
Many have already pointed out the difficulty, so I won’t repeat that. I’d tweak the spike hitboxes a bit, since right now, even grazing them means instant death
Overall, awesome work!