This roar is linked to Godzilla 2000, the Toho film also known as Godzilla 2000: Millennium, released in 1999 in Japan. Sounds from that era of Godzilla movies spread widely through fan edits, kaiju compilations and short meme videos because the roar is instantly recognizable even without visuals. It remains popular online for creature reveals, destruction montages and nostalgic monster content, especially among viewers looking for a classic Godzilla roar rather than a more modern Hollywood version.