The theme comes from Resident Evil 3: Nemesis, the 1999 survival horror game in which the bioweapon Nemesis relentlessly hunts Jill Valentine through Raccoon City. Its music was designed to accompany that pursuit, so the track became closely linked with the character himself rather than just the game. Over time, clips of the theme spread through gaming videos, soundboards and horror edits, where fans reuse it whenever a powerful enemy appears. It remains popular because that association is instantly clear: the sound alone suggests something unstoppable is coming.