Well, there are three of them. One's called "Divine Rose" other s called "Metal Chocobo" and the last is called "Oblivion". To get the Metal Chocobo, you'll have to beat Cloud at the "Olympic Coliseum's Hercules Cup". To get the Divine Rose, talk to Belle the second time you go to Hollow bastion. And "Oblivion" can be achieved by going to that room you faced Riku/Ansem in. Take the stairs on the left, jump on the ledge with the 101 dalmation chest and take it up to another chest that has "Oblivion". There you go.
All those who show true wisdom, will live to see the wonders of the Kingdom, Hale to the King Of Games. Join Team "Royal Kingdom$$$$"