The Rasengan comes from Naruto, the long-running anime and manga series, where it is the signature technique of its hero Naruto Uzumaki. Formed by concentrating and spinning chakra into a dense sphere, it became one of the show's most recognisable attacks during its original run in the 2000s. As anime clips and edits spread across online video platforms and soundboards, the distinctive whirling noise was lifted out of fight scenes and reused on its own. It remains popular because fans instantly recognise it as a shorthand for charging up and unleashing power.