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Toughest enemy in a Final Fantasy game

Toughest enemy in a Final Fantasy game
Who
Pandemonium Warden
When
September 2008
Until September 2008, the most powerful enemy in a Final Fantasy game was the Pandemonium Warden, a shape-changing villain in Final Fantasy XI. The monster proved too powerful for most players to defeat and Square Enix released a game update that significantly reduced the beast’s abilities. Guinness World Records Gamers' Edition 2009.