BEIJING, CHINA - AUGUST 25: A track worker sprays fire retardant on Tian Gong Ultra humanoid robot after it burst into flames after the finish line of the first heat in the large robot category of the 100 meter at the 2nd World Robot Games at National Speed Skating Oval on August 25, 2026 in Beijing, China. A Tian Gong Ultra ran the 100 meter in 9.39 seconds at the games' opening ceremony on August 22nd, beating Usain Bolt's long standing record. The games, that feature hundreds of humanoid robots competing in track and field, tennis, boxing, football, working skills among many others, runs from August 22-26th. (Photo by Kevin Frayer/Getty Images)