You need to connect a micro:bit to be able to play this game (check out this example on YouTube: https://youtu.be/m_yalxqAwdw ) Use the tilt sensor on the micro:bit to steer Connect P0 and GND with a foot pedal to make speed Connect P1 and GND with a brake.
Thanks Scratch Team and Micro:bit Foundation for making the new micro:bit extension. I love it :) To connect a micro:bit, please click on the orange exclamation mark that appears when you have selected the micro:bit blocks (see inside). If you don't have Scratch Link yet, then a note appears on how to install it. Furthermore, you need to copy a special .hex file made by the ST to your micro:bit using a USB cable. Good luck!