I tried doing this test about a zillion times but couldn't get through more than around ten seconds of it, there was way too much stuff going on the screen distracting me. In the end I did it by covering up the TV screen with the back of my chair so that just the top of the screen showed and it was much easier to focus on the red line without the distractions. Also, tapping the control stick makes it easier than pushing it left or right.