Beelzebub, also known as Satan or Beelzebl, is a boss guarding a treasure chest containing the Genji Armor in Pandaemonium in Final Fantasy II. A top-rank demon, it was one of Satan's generals. It also appears as the boss in the Arcane Labyrinth Northeast section.
Though Beelzebub has a powerful attack stat at his disposal, he tends to focus on spell casting, so casting Shell and Wall spells on the party at the outset of the battle to guard against his deadly Flare 16 is important. Once the magical defenses are in place, the player may choose to put up physical defenses such as Protect, but the battle may not last long enough for them to make a difference. Player should avoid attacking with the Fire element, as Beelzebub will absorb it. He also has a resistance to Ice, so the player should just use their highest-level Lightning or non-elemental spells. If the player has more than one warrior with the Basuna spell, they will be ready for Beelzebub's Muddle and Stun spells. The player should equip their strongest sword-wielder with a Blood Sword and use attack.
An alternate method of winning is to simply cast a level 8 or higher Teleport.
Beelzebub means "Lord of the Flies" in Hebrew and is a name often associated with the devil. It appears in the book by William Golding of the same name (Lord Of the Flies) as the head of a slaughtered pig on a stake. Beelzebub is also one of the Seven Princes of Hell, associated with the deadly sin of Gluttony.