3 ms·Robot-sumo? https://www.youtube.com/watch?v=mS-L2fpV1Is https://www.youtube.com/watch?v=mS-L2fpV1Isby fuoqi 5y agoRobot-sumo? https://www.youtube.com/watch?v=mS-L2fpV1Is https://www.youtube.com/watch?v=mS-L2fpV1Is