I’m glad you enjoyed the game so much :) The rating system is a bit complicated to explain through words, but it tracks colors, time spent drawing, time remaining, number of simple shapes that are in each prompt and some other factors, which should have definitely been explained in a quick tutorial… If I decide to work on the game post-jam I would definitely put some work in displaying that information more clearly
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That's super cool! Honestly I don't think you necessarily need to communicate to the player exactly how the scoring works as long as appropriate feedback is provided :) it's nice to keep these kinds of things in the background sometimes so the player feels more immersed and won't try to "hack" the system