Well done in such a short amount of time! For your initial game idea, it's no problem if the game has a bug in it. For this jam, you're allowed to do bug fixes after the submission deadline. If you want, I'm more than happy to review that game as well if you put it up on itch.io.
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Thank you very much for your comment! Unfortunately my original idea was a narrative fiction type of game, and the bug had made all the dialogue disappear, so it was very gamebreaking and unknown how long it would take to fix it. I'll keep your offer in mind though if I manage to fix it soon, thanks!
Yes, I use git, everything had been working in the editor, but the moment that built it into WebGL (my first WebGL build), stuff broke. Well it is what it is, I'll get back to it later. I'm still happy with this little game, that managed to actually complete it in 6 hours. :) And with some tuning - more bounciness! competitive local co-op who completes their necklace first! - it might have promise to be published on Steam one day.