Exploring the Multiverse

Miguel
Descrïption: A world where the sun never rises, hidden in a vast area of woods. Strange kinds of flora can be found here and it sometimes rains crystal fragments.
Allies: Merlin
Enemies: ---
Dream Core: Locked (Sky)

Disney Castle
Descrïption: A castle and a town populated by highly intelligent anthropomorphic animals. Usually bright white and sky blue, something dark had happened to the castle: Its walls were rotting and stained a dingy gray, while a sickening green mist creeped through the halls. However, after the Black Cauldron was destroyed, the castle went back to normal.
Allies: Queen Minnie, Daisy, Donald, Goofy
Enemies: Horned King, Kefka Kefka killed the Horned King & left Disney Castle for worlds unknown.
Dream Core: Locked (Was being sealed away by the Black Cauldron's evil power)

Neverland
Descrïption: A world that consists of a group of beautiful islands, Captain Hook's ship, and London's Big Ben area. The islands were covered in mist. Captain Hook was consumed by the darkness but was defeated by the Keybladers.
Allies: Peter Pan, Tinker Bell, Wendy
Enemies: Captain Hook
Dream Core: Locked (Big Ben)

Pride Lands
Descrïption: The Keybladers became real animals and fought throughout the savannah to save this world, meeting King Simba and many other animals. Everything started when they found Simba's daughter, Kiara, trapped within a burning forest. The Outlanders, banned lions, seemed to be up to something with the Dreameaters. In the end, the Outlanders were allowed to rejoin the Pride, but Zira had to be killed when she refused to let her grudge go & absorbed the Dreameaters in a final bid to kill all of her perceived enemies.
Allies: Kovu, Simba, Kiara, Rafiki
Enemies: Outlanders Zira is deceased & the Outlanders have reintegrated into the Pride
Dream Core: Locked (Within Mufasa's memory)

Gaia
Descrïption: The Keybladers arrived at a village in ruins. Meeting some allies, they discovered a man named Kuja was controlling the Dreameaters. When Kuja attacked the great kingdom of Alexandria, it was up to them to stop him and find the Dream Core. Eventually, Kuja absorbed the power of the Dreameaters, but lost control of one of the ones he summoned. This Dreameater, the most powerful one seen yet, was eventually destroyed, but Kuja's fate remains unknown.
Allies: Zidane, Eiko, Garnet, Steiner, Amarant, Quina, Freya, Vivi
Enemies: Kuja(?)
Dream Core: Locked (Inside a marble with an inscription of "Regret")

Spira
Descrïption: The Keybladers arrived at Allina's home world only to find out a man named Sephiroth had destroyed the strongest creature in it, Sin, and murdered several innocent people. Alllina prays to the spirit of a departed girl at the village of Spira, obtaining the ability to summon Valefor, a large bird-like creature. They befriend a famous man by the name of Auron, as well as two young men called Tidus and Ramza, and depart to the ruins of an ancient city called Zanarkand to fight Sephiroth. Sephiroth cryptically mentioned dreams of his destiny & a woman named Maleficent, but has yet to explain himself.
Allies: Auron, Tidus, Ramza
Enemies: Sephiroth
Dream Core: Unknown

Atlantica
Descrïption: They arrive at the bottom of the ocean, their bodies having turned into those of mermaids and mermen. They meet a new Keyblader, Euryale, and a beautiful mermaid princess, Ariel, and gather forces with them to stop a giant squid-like Dreameater that attacks the underwater kingdom of Atlantica.
Allies: Ariel
Enemies: ???
Dream Core: Unknown

Kefka's Tower
Descrïption: Some of the Keyblade Masters are shot down by a powerful beam of light over a "world" of ruins & fragments of land floating in space. At the center is a tower constructed of the ruins of many worlds. Inside it is a chaotic architecture of world fragments being twisted together, although some things still seem to be able to survive. As it turns out, this space used to be occupied by Kefka's home world. After obtaining the power of the Black Cauldron, he destroyed it & many others for no apparent reason. The Keyblade Masters were joined by a samurai named Cyan & a warrior-mage named Celes, enemies of Kefka. The woman from Miguel's Dream Core, revealing herself to be named "Lilith," also joined them, saying that she was hunting Kefka as well.
Allies: Cyan, Celes, Lilith
Enemies: Kefka
Dream Core: Unknown