Gate

After the events of Kingdom Hearts, many of the worlds that had been threatened by the Heartless are restored, as are the barriers that prevent travel between them. In Kingdom Hearts II, however, Yen Sid tells Sora and his friends that the worlds have prepared new pathways for them to travel upon that can be accessed by unlocking special Gates (ゲート). Meanwhile, the Heartless and Nobodies use their own paths to infiltrate other worlds: corridors of darkness. By linking these dark pathways to the Gates between worlds, they trigger the appearance of Gummi Enemies.

On his journey to find Riku and King Mickey, Sora manages to open several Gates; this occurs when a specific item or object unique to the world that he is currently in is wrapped in light. With a gust of wind, the item proceeds to reveal its world's Keyhole as a symbol shaped like Sora's crown pendant appears on the ground beneath him. Sora then spins his Keyblade and unseals the world's Gate; he, Donald, and Goofy continue on their quest when this process is complete.

Worlds that Sora unlocks while visiting others, such as Space Paranoids and 100 Acre Wood, do not appear to have Gates of their own and are accessed through other means.

List of Gates

 * Twilight Town: The blue orb from the Struggle Trophy.
 * Hollow Bastion: The Hollow Bastion Restoration Committee honorary membership card given to Sora by Leon.
 * The Land of Dragons: Shan-Yu's sword.
 * Beast's Castle: Beast's rose.
 * Olympus Coliseum: The Olympus Stone.
 * Disney Castle: The Cornerstone of Light.
 * Atlantica: A bubble.
 * Port Royal: Jack Sparrow's compass.
 * Agrabah: A ruby from the Cave of Wonders.
 * Halloween Town: Jack Skellington's Santa Claus costume.
 * Pride Lands: A star.
 * Realm of Darkness: The Sea-salt ice cream given to Sora by Riku.

Kingdom Hearts Birth by Sleep
In the Final Episode, the comatose Ventus uses his Keyblade to open the Gate that leads to the Land of Departure.

Verrou Céleste Tor