I really love the vibes on this one with the art style and music, great job there. Your sprite animations (especially the death animation and blood) are super well done. Everything is visually cohesive. I did not get to the end cause I suck at platformers but I like the way you laid everything out and had the level act as a tutorial for the wallslide ability. Very intuitive and natural way to show the player new things. I only wish there was a checkpoint at that wallslide spot so you could try again from that ledge.
Well done! Very cool!