Since you were using GameMaker, it'd be really great to export this as an HTML5 game if you can. I think this game would work a lot better in a browser, and itch.io games played in-browser gets vastly more plays than downloadable games. This game deserves to have more players; it's good stuff.
I did a HTML5 port! It is not perfect (Some lag on the background movement). I still prefer to play the executable version!
Also added some SFX as per your suggestion! Thanks!!! All feedback is highly appreciated!
I may develop it further if there is enough interest during the game jam. Some people, like you, really liked it, which made me very happy with the work done!