This crowd sound is associated with Pokemon Stadium, the Nintendo 64 game that let players stage three-dimensional Pokemon battles in front of a cheering arena audience. In that setting, crowd reactions were part of the spectacle, rising when a battle turned or a favourite won. Clipped out of context, the cheer works as a standalone reaction sound, which is why it circulates on soundboards alongside other game and meme effects. Creators keep returning to it because a genuine crowd roar instantly signals a big moment without needing any dialogue or explanation.