I have seen a couple of people on the bus playing a game on their phone, and it looks so absorbing. As you hold the phone, rectangles are moving up the screen and I th8nk the object is to touch each one that appears. Some are longer than others and I think you have to keep your thumb on them longer. It reminds me of those dance machines in arcades where you have to step on a spot when it lights up. Does anybody know what this game is called? I would ask someone but don’t want to stop their concentration!