The Nintendo DSi launched in Japan in late 2008 and worldwide in 2009 as a camera-equipped revision of the Nintendo DS. Its short boot jingle comes straight from the system's firmware and played every time the handheld powered on. As the DSi generation grew up, the sound became a shorthand for late-2000s handheld nostalgia on YouTube and TikTok, popping up in retro tech videos, meme edits and 'POV: it's 2010' posts. Creators keep using it because it instantly signals childhood gaming without a single word.