This game is a cool idea but unfinished. It's unclear to me what the "rules" are. Some became green vs red when I interacted with them? Are we following all the rules to make a viable 4-digit number? Some rules are worded strangely and some are impossible (4 numbers can only add to 36, not "factors of 100" for example). Also unsure what the two checkmarks are for four numbers, is the code two two digit numbers? A lot is unclear, it doesn't fit the theme well, and there are plenty of bugs such as music layering and not allowing the calculator to add more than two numbers at once, but I see the vision of this game.