Things I liked:
I liked the difficulty and overall gameplay a lot (very celeste-y)
artstyle & music were great!
I found 2 things a little frustrating: the velocity smoothing on the character (or the slight slidey feel) and the hitboxes. Sometimes it felt that as soon as the edge of my character hit a spike I died; I think it would be less frustrating if there was a smaller player hitbox (of course you could then increase the size of the spikes in order to have the same physically valid area, but it would just be visually a more intuitive representation of where I am allowed to be)
That being said, I really liked this game! 5/5