Hokuto Hyakuretsu Ken, also called the Hundred Crack Fist, is the signature technique of Kenshiro, the hero of Hokuto no Ken, the manga created by Buronson and Tetsuo Hara that began in 1983 and became a hugely popular anime in 1984. In the story Kenshiro strikes pressure points with a blinding flurry of punches, and the attack became one of anime's most imitated finishing moves. Decades later the sound remains shorthand online for unstoppable speed, reused in edits, parodies and fighting game clips.