In Microid’s Agatha Christie’s The Murder on the Orient Express, there’s a minigame where you turn dials on a briefcase lock. A click sounds plays as you pass each number, with a louder sound played on the correct number for each dial.
The dial is surrounded by a white oval which becomes squiggly as each sound plays – visually modeling what the sound is modeling. When you move over a correct number, the oval becomes even more squiggly to match the louder sound. It’s a nice bit of accessible design, giving feedback in two different ways using two different senses on a very straightforward puzzle.
But then!
You dial in two numbers and move on to the third and a member of the train’s staff starts talking to you every time you turn the dial. You can’t really hear the clicks anymore, and the oval is “loud noise” mode every time he talks.
To solve the puzzle, you have to back out of the minigame and ask the man to be quiet!
It’s funny!