The Rasengan comes from Naruto, the long-running anime and manga series about the ninja Naruto Uzumaki. Created within the story by the Fourth Hokage and later taught to Naruto, it is a sphere of pure spinning chakra that became one of the series most recognisable attacks. As Naruto clips spread through online fan edits and short-form videos, the charging whir and crackle became shorthand for a powerful anime move, even outside the show. Fans still use it because it is instantly recognisable, short, and carries the weight of a signature finishing technique.