Chen Zhen ( Bruce Lee) against Japanese Hongkou dojo

Chen Zhen (Bruce Lee) defeating students of Japanese Hongkou dojo including their sensei, singlehandedly and effortlessly. He uses a nunchaku as a weapon during the fight. He smashes the glass on the sign and makes the students who taunted him earlier chew up the paper bearing the derogatory words, so as to make them literally eat their words.