PLEASE READ INSTRUCTIONS, BUT PLEASE READ NOTES AND CREDITS FIRST: When you are in the game, you need to click on the red door. When you click on it, an answer bubble will appear. Type in a word, or multiple if you please, and when you click the check mark, a screen will show up telling you whether the word went through or not (technically if the word met the required criteria). Click on the screen to exit out. Repeat this process until you think you have the pattern. When you are sure if you figured it out, go inside to the door sprite, which will have a box that says the answer. Please don't hate or advertise in the comments, and don't spoil the answer for others. I will have to shut down comments if that happens. Other than that, have a great time playing!
This game is inspired by a game called the Green Glass Door, where there is a door that lets words with a certain criteria in. This game follows the same concept, though the criteria is different from the original game. Code+Art is me, @kangaroo_code Concept, as I said before is inspired by the Green Glass Door