Arduino Cyclone Game: Stop the Light in the Middle (7 LEDs + Button + Buzzer)

Can you stop it on the red LED? A desktop version of the arcade **Cyclone** game: a light bounces across **7 LEDs** and you score by pressing the **button** while the red centre LED is lit. Every hit reduces the time per LED by about 15%, down to a minimum of 45 ms, and the **buzzer** plays a tune. A wrong press costs a life, and the game ends after 3. The best score is kept in **EEPROM**, so it survives a power cut.