This sound is commonly labeled as an Undertale phone ring and is used online for game edits, meme clips, and custom notifications. Undertale, the indie RPG created by Toby Fox and released in 2015, has a distinct retro audio style that makes short interface-like sounds especially recognizable. Clips like this spread through soundboards, short-form video edits, and fan content because they instantly suggest a pixel RPG mood. Its staying power comes from being brief, clean, and easy to drop into fast comedic or gaming-focused videos.