Kingdom Hearts: Birth By Sleep takes place long before the original game in the series and is being developed for the PlayStation Portable. This title is a single player-only adventure that features characters that were previously revealed in a secret trailer, only available in Kingdom Hearts II: Final Mix +, which is not available outside of Japan. The game's protagonist is named Terra, while the game also features other familiar names like Xehanort, Sora, and Riku--as well as new names such as Aqua and Ven. Birth By Sleep also features familar worlds such as Hollow Bastion and the Coliseum, as well as a new world that is similar to that of Sleeping Beauty's. Terra is a keyblade user, and though it's currently unclear, it sounds as though he may have been a friend of Sora and Riku.
Kingdom Hearts: 358/2 Days chronicles the 358 days that Roxas exited during the two days that Sora was in a deep sleep in Castle Oblivion. This title is being co-developed for the Nintendo DS by Square Enix and h.a.n.d., which developed Final Fantasy Fables: Chocobo Tales. Kingdom Hearts: 358/2 Days, better read as 358 over 2 Days, is both a single and multiplayer game, featuring a fully 3D world. Playable characters will include Roxas, as well as other Organization XIII members, such as Axel, Saix, and Xigbar. The game also introduces players to the Organization's 14th member, who is a female.
The final game announced was for mobile phones and it's titled Kingdom Hearts: Coded. This title features a computer data version of Sora, though it is unknown if this is the only way he'll be appearing during the game. Set between Kingdom Hearts and Kingdom Hearts II, this single player adventure features familiar locales such as Traverse Town and Destiny Islands. The game includes puzzle elements, though at this time, it is unknown how deeply these are rooted in the gameplay
