When the game begins, the score is set to the current time. The leftside's score is the current hour (in 24-hour time), and the right side'sscore is the current minute. Then, the right side scores about once aminute to keep up with the real clock. When it gets to 59, the nextscore makes it wrap around to 00, and the left side will score shortlyafterwards to bring the hour forward. At midnight, left's score wrapsaround to 00.