Final Fantasy II/Mission to the Cyclone

The cyclone
Use the Wyvern at leiseure during battles to cast Fire-8 on all enemies.

Item checklist:
 * G-floor: (no items)
 * Floor 1: Ripper (dagger)
 * Floor 2: poison axe
 * Floor 3: diamond helm, diamond gloves
 * Floor 4: defender (sword), diamond armor
 * Floor 5: wind flute
 * Floor 6: (no items)

BOSS: the Emperor of Palamecia
Use the wind flute on him. Even if you defeat him first, the battle is over when all enemies are defeated, as usual.