Glad you like it! About the scaling in fullscreen, it's a funny story because I first draw the player character and some objects, but then I thought they were too small, so I kinda tried to get a bunch of tricks to fill the space :) But I think it ended up well enough. About the janky controls, I don't understand/need more information. If you talk about the jumps being too much precise sometimes, I am also tried to work on that. Other than that...
I do hope you come back in a future update! :)