Square has unmasked the identities of three more characters in their upcoming joint project with Disney, Kingdom Hearts. The choices were probably inevitable, given the cartoon giant's involvement in the game, and so it is that Chocobo, Mog, and Cid will be featured. It was not revealed exactly which Cid would be used in the game, and it could conceivably be any of the incarnations of the staple character. Whichever it ends up being, his part in the game will be as a weapon shop owner who is hiding something about his past.
What role Mog and Chocobo will play in Kingdom Hearts remains to be seen, although it is likely the characters will be modeled in the same fashion as they are in Chocobo's Mysterious Dungeon, given the former's graphical style. It was also not stated whether the characters would be playable or not. Kingdom Hearts is currently slated for a December release in Japan.