Hello! Thank you for your reply! It was my first time entering any Jam, so I decided to make something really simple because I wasn't sure that I can do everything smoothly. But there are things, which went wrong, for example, I couldn't figure out, how to add music, and then publish it (GDevelop wasn't allowing me to build the project).
By the way, I think, GDevelop is a very cool engine, and, personally, I like it more than coding in Unity. (or maybe I am just bad at it :)
Anyway, thank you for your feedback!