Prankster's Paradise

Unreleased Pinocchio's World is a placeholder name for a world based on Pinocchio. The world's debut appearance was confirmed Kingdom Hearts 358/2 Days, but was eventually removed due to space restrictions.

Tetsuya Nomura explained that the planned plot for the world was, set in a circus and playing off the story of Pinocchio, a puppet with a heart, and the Nobodies who possess no heart, we planned for a sad episode with Roxas and Xion looking for hope for themselves. The world would have included Pinocchio (as a human) and Gepetto, as well as the villains, Honest John and Gideon from the original film. The profile sprites for the characters still appear within the final game's code.

On the other hand, Kingdom Hearts Birth by Sleep Final Mix, Pinocchio's World is not in itself, but the world's sea area is reproduced by Mirage Arena in the mission Monster of the Deep, which takes place a virtual battle against Monstro.

Before Kingdom Hearts
Prior to the events of Kingdom Hearts, the world was destroyed by the Heartless. During the chaos of the destruction of their world, Pinocchio and Jiminy Cricket are separated both running in different worlds. Meanwhile, Monstro, who had already devoured Geppetto, managed to survive the destruction of their world, but ended up wandering the gummi routes between Agrabah and Atlantica.

When Sora and King Mickey seal the door to Kingdom Hearts, the world is restored and all return with the exception of Jiminy Cricket, who is with Sora.

Trivia

 * If Pinocchio's World had been added to Kingdom Hearts 358/2 Days, Monstro would have gone on to become the fifth world "inside into another world", with the remaining 100 Acre Wood (Traverse Town and Radiant Garden / Hollow Bastion ), the Mysterious Tower (Twilight Town), Timeless River (Disney Castle) and Space Paranoids (Radiant Garden / Hollow Bastion).
 * Although Nomura said the story would have to have Pinocchio as a puppet, he has already become human at the end of the events of Kingdom Hearts.