People dig up random little easter eggs and bugs in old games all the time. What they don't often find are entire side-quests which have somehow remained hidden from view for over a decade.
YouTube user GarlandTheGreat has uploaded a video showing a sidequest present in Final Fantasy IX that, until now, was pretty much unknown outside Japan.
The steps involved in triggering the quest are ridiculous, explaining why - along with a terrible Western strategy guide - it's remained hidden until now, but whatever.
Really makes you wonder how many other "pre-internet" games have stuff like this lying undiscovered.