I really liked the game! It reminded me of Celeste in some ways!
The controls are tight and well implemented, it feels incredibly well to play, and it's actually satisfying to perform the difficult jumps that you face! 😁
I agree with other responses: the game's difficult (and that's good!). I feel challenged by the game to keep trying and trying, because most of the time when I die, it was a mistake I made.
I only have two problems with the game, and they both have to do with the stick to the wall mechanic; I found myself not releasing the Z key all the time I played, this makes the game feel easier, I would add some kind of mechanic to prevent players from keeping the Z key pressed all the time. Also, I feel like you fall too fast when sticking to a wall, I died multiple times thinking that I would be safe sticking to a wall, just to drop too much and touch some spikes.
Other than that, very good entry! 👍