Game description: Simply mouse over the button in the center of the screen. The younger you are, the more clearly you'll hear the tone that plays. I'm not sure of the exact age-cap where you are no longer able to hear it, but... (more)

Game description:

Simply mouse over the button in the center of the screen. The younger you are, the more clearly you'll hear the tone that plays. I'm not sure of the exact age-cap where you are no longer able to hear it, but this tone - called a mosquito tone - was discovered by Howard Stapleton and is commonly used to repel loitering teenagers from shopfronts.