Furious Gigas is a sub-boss, found on the 72nd floor of Tartarus in a group of three. They impede the party's progress and must be fought in order to continue. They are neutral to Charm, Panic, and Rage, while blocking all other ailments. It is later encountered as normal enemies on the Yabbashah Block, between floors 99 to 113.
In The Answer, Furious Gigas can be found in the first section of Caina within the Abyss of Time.
Persona 4 / Golden[]
Furious Gigas appears on B3F and B4F of the Secret Laboratory within the Midnight Channel. It will use Rebellion to increase its Critical rate before attacking. When defeated, it may drop Proof of Passion. Selling six Proof of Passions at Daidara Metalworks will unlock the Divine Blouse female armor in the shop. Three Proofs of Passion are needed to complete Quest #35: Desk Refurbishing, Part 3. In Golden, this is instead Quest #46.
In Golden, Furious Gigas appears on the floors above, as well as on B1F and B2F as a red Shadow. It may also drop Howlite for trade at Shiroku Pub.