Cool idea for a game, and congrats on your first ever game jam entry! I liked the sprite designs. It's neat that you made those yourself. I wasn't able to get very far in the game, but what I did see was enjoyable.
I noticed that maximizing the screen didn't resize the game elements. Consider changing your project settings from disabled to viewport - https://docs.godotengine.org/en/stable/classes/class_projectsettings.html#class-...
If you'd like to see a live reaction of me playing your game, visit https://www.twitch.tv/videos/2240349196?t=00h59m58s