REGISTER TO REMOVE ADS
The organization XIII from KH2 u fight that half of the org. during the story.
For the chain of memories one here are there loactions
Larxene Port Royal - Isla de la Muerte
Lexaeus Twilight Town(2nd Time) - The Sandlot
Marluxia Beast's Castle(2nd Time) - Beast's Room
Vexen Agrabah(2nd Time) - Merchant's Shop
Zexion Underworld - Cave of the Dead
There are little symbols u have to press triangle to start the battle with the chain of memories people.