Very nice game! I ended up spending more time replaying it without even realizing. It was a perfect mixture of being fun and a challenge. The music and art style also fit very nicely together!
One thing that happened for me when playing was that when I gained momentum with the grappling hook I almost went halfway down the map which was a little annoying at times if I accidentally then hit an object that would kill me, but maybe that's just part of the game :D
I don't know if you've heard of Game Development World Championship before (gdwc2019) but it's a competition for indie game developers where they can submit their games and it's free! It's great if you want some more visibility for the game and it only takes a couple of minutes to join :)