Good work, gameplay is pretty engaging that I even managed to beat it. (my time 4:56)
Controls felt a bit clunky, but maybe it is because of super small second jump.
Also in rock climbing area https://ibb.co/zHBW827g top rock doesn't have a collision, so when you try to jump on it, you fall down.
Also you should disable itch.io fullscreen button, if you have unity one. Since itch.io button doesn't work properly and overlaps the unity button.