Goku is the hero of the Dragon Ball anime and manga franchise, where his battle cries accompany power-ups, training breakthroughs and fights against far stronger opponents. The roar became shorthand online for pushing past a limit, and short clips of it spread through anime edits, gaming montages and reaction videos as an instantly recognisable burst of determination. It remains popular because it needs no context: even viewers who have never watched Dragon Ball recognise the sound of someone straining to become stronger.