A several-move CYOA made with Quest. This will take less than five minutes. There are a couple of choices that you, as a door, have to make about who to let pass through and who to disallow. This could be expanded into something really cool (perhaps sort of a reductionist "Papers, Please") if the author chose to do so.
(Spoiler - click to show)Shows promise...for example after letting a child through, and blocking two suspicious men, Michael Jackson comes to the door. My thought was "I'm not letting him through, he's dead!" and I was correct. This is the type of absurdist humor that could be expanded upon. Right now it's if you guess wrong, you die somehow. I'd like to see ways that you could fail and perhaps learn the rules...or maybe in the same fashion of "Papers, Please" you get sets of ever more complicated conflicting and contrasting rules. With some thought and expansion, this would be the kind of cute joke game people might really enjoy along the lines of "The Idiot Test" apps for phones.