Final Fantasy VI -> Sidequests, Cyan
Part I: Getting Cyan
This sidequest requires no party members beyond the default, but does require a bit of levelling up since you will need to fight through Zozo and Mount Zozo. You will also have the chance to fight the storm dragon, but it may be too hard for you to fight right now if you're just beginning the world of ruin. You may wish to choose to get Cyan and come back later, or to complete some other quests and level up first if you can stand being without Cyan for that long. Getting Sabin's Bum rush helps for fighting the thunder dragon in this quest, so you may want to compete Sabin's Sidequest first.
At the end of the sequence getting the airship, you'll be directed to Maranda by a pidgeon. Buy some equipment and you can talk to an old lady there who can show you the new location of familiar areas in the world of balance. You'll meet a girl there who's convinced she's still getting letters from Mobliz. Follow the pidgeon she sends out to wind up in Zozo. Zozo is in the northeastern part of your current continent just for reference.
Walk to the north of town and talk to the merchant to buy some rust-rid, and walk through the cafe building, going out the right door and then trying the left door to use the rust-rid and enter Mount Zozo.
Do the usual routine of clearing out the chests, and you'll get some truly awesome equipment including the Aegis shield which is very effective at blocking magical attacks. Exit through the left cave for a gold hairpin then through the right one to move on. In the next room stepping on the switch unleashes the deadly thunder dragon from a chest, so save if you're sure you want to fight it. Exit through the bottom right to find Cyan. When you're done with him, return to the cliff to pick up a key to open the chest.
If you're determined to fight the dragon, equip two people with the thunder and aegis shields and step on the switch, and wait by the save point to fight it as it flies around. Use your most powerful bolt spells, heal often, and have Edgar and Sabin use the chain saw and bum rush respectively. It has 42000 HP but if you can survive its attacks it will go down eventually. Cyan will also give you a clue about Gau's whereabouts so you can do his sidequest next or whatever you'd like.
Part II
This part requires having Cyan in your party, and I would recommend three other highly levelled up characters since they'll be doing all the fighting in Cyan's nightmares. If you just completed Cyan's first quest I would recommend waiting to beat this one until you finished a few more sidequests. You'll sleep in Doma Castle with Cyan then make your way through Cyan's dream world.
