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Skullrus Rex

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The Skullrus Rex is a monster from Final Fantasy Mystic Quest and the reincarnation of Flamerus Rex. It guards the lower passages of Doom Castle, which resemble the Bone Dungeon.


Although it attacks with two powerful Shadow enemies and is much stronger than Flamerus Rex with several status attacks, it is still very weak. Unlike most bosses (and undead), the Skullrus Rex is not immune to any status ailments, including Petrify or Fatal attacks, and can be defeated easily using the Dragon Claw or attacking with the Heal and Life spells, although it may take a few tries for it to succeed.



Rex is Latin for "king", specifically, the title of the kings of ancient Rome. With enemies that resemble a tyrannosaurus, the name refers to Tyrannosaurus Rex.

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