Bituitus is an enemy in Final Fantasy XIII. It is the mark of Cie'th Stone Mission 7: Bituitus, the Pillager and is one of the Undying. Upon defeat, it retreats into a crystal cocoon and remains inactive until the party returns for Mission 64, turning into the superboss Vercingetorix. The completion bonus for defeating Bituitus is an electronic pass granting access to the save station shop, R&D Depot.
Bituitus opens the match with Miasma inflicting the party with status ailments. Bituitus halves all elemental damage and is weak to magic. Bituitus is difficult to stagger, because of both its high stagger point and because it halves all elemental attacks. Its ATB charges fairly quickly. It uses an attack called Levinbolt to deal Lightning-elemental damage to the party.
It is wise to use non-elemental magical abilities like Ruin or Ruinga. If the player finds that the Miasma is giving them difficulty, Dispelga is effective. Inflicting Slow to hinder Bituitus's fast ATB recovery, Imperil to eliminate his elemental resistances, and Deshell to further weaken his already substantial weakness to magic, makes the battle easier. Bestowing Veil reduces statuses from Miasma, Barthunder weakens Levinbolt, and Protect is good for defense. With the debuffs and buffs in place, the paradigm Relentless Assault (COM/RAV/RAV) will make short work of Bituitus.
Bituitus is the name of a Gallic king and an enemy of Rome.