Suddenly, the screen will flash. In the middle, there's a number counting down. It starts at 10 and goes all the way to 0. Your goal is to tap the screen when it flashes. The moment you do this, the counter will stop. The number that is visible will be added to your total score. The screen goes black again and the game repeats, but this time, the countdown goes faster. When you tap too early or too late, the game will stop.

Try to beat your highscore! And train your reflexes and speed of reaction along the way.