The clip circulates with the filename BalloonFightFollow and embedded tags naming it Let's Go! by Setsuo Yamamoto, which points to use as a streamer follow sound rather than a confirmed soundtrack rip. At just over four seconds it fits the classic alert slot, sitting alongside other let's go hype clips and bright stream alert tones that signal a new follower or a match start. Its continued use comes from that practical length and instant readability: it is short, positive and unmistakably game-flavored.