The way they’re touching the screen makes me think this is a tournament slot. So the tournament has an entry fee and prizes for the highest score, but the individual games are played for points, so you just press the button as fast as you can and hope you are luckier than everyone else. Sometimes they also have touch screen mechanics like “wack a mole” or “catch the money in the tornado” to make it a little more interesting than just slamming a button. I wouldn’t call anyone a gambling addict based on just this picture.