The Pacer Test is a multistage aerobic capacity game made by GeorgeOfAIITrades & Lskid that progressively gets more difficult as it continues. The 20 meter pacer test was played by Younite & others who are much more famous than Jackeryz. To play, you first line up at the start. The running speed starts slowly but gets faster each minute after you hear this signal bodeboop. A single lap should be completed every time you hear this sound. ding Remember to run in a straight line and run as long as possible.