Skullrus Rex

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 Petrify and can be defeated easily using the Dragon Claw, although it may take a few tries.