This sound comes from the Pokémon anime opening theme, one of the most recognisable songs tied to the franchise. It became widely shared through fan videos, gaming edits and nostalgic posts, especially in clips that reference the early anime era. Creators still use it because a very short section instantly communicates Pokémon without extra context. Its singalong quality and strong association with childhood memories help it stay popular across meme edits, retrospectives and lighthearted fandom content.