Congrats on finishing your first game! I'm sorry but I wasn't able to play it. When I try and open the file I get an error message saying the .pck is missing. This is an issue I've had with Godot before, for some reason even if you export with "embed PCK" checked the game does not open on other computers. The best solution I've found is to export it with "Embed PCK" unchecked and then submit a zip file containing the game and the pck. Don't let this get you down, the fact that you submitted anything at all is HUGE. The first jam I attempted I didn't submit anything at all.