i played some levels and must say it's a nice try for the first game. from my view at this point you need to expand your acknowledgment of engine ability like physic system and etc for creating a more smooth experience. one more thing, don't package your project file with the final build. be patient and keep it up!

Cute little submission and first game :) In the future just keep trying to think of interesting mechanics to add to your game (like collectibles, moving platforms, etc.) to keep the player engaged. And keep doing jams, they are always a fun experience to see what you can come up with!

You marked it as playable on Mac, but I'm unsure where to find the file for it. Was it just a mistake?

Thats a nice first project. Only Tips I'd like to give you is that you should make your store page look more professional & add some sort of gravity and basic graphics to the game along with some pickups and objectives. Wish you good luck for the rest of your journey