There are a few problems. The “?” Covers up the last inventory item if you have lots of items. The crow is hard to find because it is so high on the screen that it can hide behind your inventory if you have anything making it hard to see. If you complete the number lock last, the lock goes away but you don’t get the candy and the game won’t finish. With a couple of the puzzles, after you complete the puzzle, you are put somewhere else in the game and have to go back to the puzzle place to get the key.