Chaos is the main antagonist in Dissidia. As the God of Discord, he summons villains from the worlds of Final Fantasy I to XII (except XI), in order to tip the balance of good and evil. He wages war on Cosmos, the Goddess of Harmony, to gain control of the world.

Chaos' style is fittingly named Master of Bedlam. Unleashing the mightiest of earth and fire based attacks, Chaos wreaks utter havoc and destruction upon his foes. His attacks cover a very large range and is capable of instantly warping to his opponent's position. When fighting Chaos, players may find him intimidating due to his sheer size and strength. However, here are a few tips for fighting Chaos, including his attacks.