For the first time in the dungeon, nothing new appears in Mt. Gulg B5, but it is still a dangerous floor. Fire Gigantes are more common, and you're fairly likely to run into Pyros enemies you can't escape from. Once again you cannot safely run from 1-–2 Ogre Mages, though at this point you should just be thankful that's all you have to fight. On the upside, you can still run from Red Dragons, including the one guarding the Flame Mail.
This floor is sprawling but mostly empty. Don't miss the Flame Armor to the west before approaching KARY in the southwest room. Use the lava-filled path to safely travel between rooms.