You will recieve Keychains at various stages throughout the game which will allow you to give the Keyblade new powers and forms.
Bond of Flames:
In Twilight Town complete the fight with Axel.
Circle of Life:
At 'The Pride Lands'speak to Simba after arriving.
At Hollow Bastion defeat Sephiroth (the optional boss).
Follow the Wind:
At Port Royal defeat Barbossa.
In the 'Underworld' section of Olympus Coliseum defeat Hades.
At Olympus Coliseum defeat the Hydra.
In 'The Land of Dragons' defeat Shan-Yu.
In Halloween Town defeat the Test Subject.
At 'Timeless River' defeat Pete.
Complete Sora's first visit to Twilight Town.
In 'The World that Never Was' defeat Xigbar.
Complete Space Paranoids.
After returning to Beast's Castle speak to Beast.
In Hollow Bastion go to Ansem's study.
At 'The Mysterious Tower' get Valor Form.
In The Hundred-Acre Wood complete the 'Spooky Cave' Mini-Game.
In the basement of the mansion in Twilight Town get the Ultima Recipe and then use the Moogle Shops to synthesize the keychain.
In Agrabah defeat Jafar.
Wonders of the Abyss:
Complete Chapter 4 of Atlantica.
Added by: Sanzano Jan 10th 2006, ID#19075