Grand Chase is a South Korean online action RPG developed by KOG, first released in 2003 and known for side-scrolling brawler combat and a growing cast of playable heroes. Trailer audio from the game later circulated separately on soundboards and in fan edits, detached from the full promotional videos it came from. Its short dramatic build made it easy to reuse as shorthand for an epic game moment, which helps explain why players still reach for it long after the original trailers were published.