Are you getting stuck on trying to get all the hidden aeons well this will tell you exactly how to get them.
This is the most simple of them all to get. Go to the chamber of the stolen faith which is in the calm lands gorge. You CAN go there before you get the airship. After you beat defender x go in to the gorge. You will eventually have to fight a dead summoner who uses yojimbo. She is not very hard a few hits from your aeons and he will die. Next go on to a teleporter and go to the faith. You will be asked why you want to use yojimbo so answer "to defeat the most powerful of enemies." Next you will have to pay him. He says give me 250000 gil. You offer him 125001 gil and he will lower his price. Half the amount of gil he wants but add 1 until he wants 202500 agree and he will be yours. Yojimbo will come in handy if you are ever stuck on a boss or fiend because if you pay him enough he will use an attack that can kill any monster or boss, zanm
Ok this guy is not as easy to get. To obtain Anima you have to get all the hidden treasures in all six temples. You HAVE to have the airship to get Anima. To get the treasures you have to use the destruction spheres. You must get the treasure in Bevelle first time because you are not allowed back even if you have the airship. Unless you want to struggle to get Anima get the treasure in Besaid and Macalania befor you get the airship. If you don't you will have to fight dark aeons. The strongest guys in the entire game. Just outside of Besaid you will have to fight dark valefor whos ordinary attack takes off 9999. His overdrive energy blast, a hidden overdrive for valefor, will take of around 52000 and he is the weakest of all dark aeons. When you have all the treasures put in this code in the search menu, talk to Cid when you can travel in the airship. After you beat lady Yunalesca. The x axes is 14 and the y axes is 60. This will unlock Baaj temple. Dive in to the water and head towards the door. You will be stopped by Geosangengo the thing you first fought here. Defeat it and swin in to the temple. You will eventually come across six statues. Activate all of them to gain access to the faith. You now have two out of the three hidden aeons.
The Magus Sisters
This is the hardest of all the hidden aeons to get. You have to have Yojimbo and Anima to obtain the Magus sisters. First of all you need to buy a weapon with capture on it. You can buy these from the calm lands from the monster owner. Then you have to capture all the fiends on mt Gagazet, including the ones in the cave. After you have caught all the fiends talk to the moster owner and he will give you the blossom crown. Next you have to go to Remiem temple which is in the calm lands to. You will need to ride a chocobo and go to where you first entered the calm lands. Go a little to the right and you will see a feather press x on it and you will get to go along a path which will take you to remiem temple. There you will meet Belgemine who wants to fight you. She will heal all your aeins because it is your aeons versus her aeons. She will have every aeon you have but you only need to get up to Bahamut. After you defeat Bahamut she will give you the flower scepter. You can defeat Anima and Yojimbo to if you want. Go to the back of the temple and use the blossom crown and the flower scepter. Then you can walk to the faith. You will now have all of the hidden aeons.
Added by: FF revealed Apr 12th 2006, ID#20688