KINGDOM HEARTS II UNLOCKABLES
Alternate ending sequence
After finishing all worlds and Jiminy's Journal under the standard difficulty setting to view an additional sequence after the ending credits. When playing under the proud difficulty setting, finish all worlds to view the sequence.
Finish the game in Proud mode and choose the sword both times. Statistics about how you played will appear after the credits.
Hidden trailer
Allow the game to remain idle for two to three minutes at the main title screen. The screen will fade and a trailer for Kingdom Hearts 2 will begin playing, showing the credits with an instrumental version of the theme song "Sanctuary" playing in the background.
Hades Paradox Cup
Have all four drive forms and summons maximized at level 7 to unlock the Hades Paradox Cup, which is a level 99 Underworld Coliseum tournament with 50 rounds.
Alternate appearance
Acquire the "Drive" ability, then during any "objective" based fights, complete the fight with a Drive activated and Sora will retain the transformation appearance for the story event that follows.
Fatal crest keyblade
Complete the The Goddess of Fate Cup in the Underworld.
Drive mode costumes and intermission sequences
If you finish fighting a Boss while in a drive mode, the costume will remain in the drive form. However the character you fused with will still appear in the intermission sequence after the fight.
Drive meter refill
If your Drive gauge is almost empty when in your transformed state, quickly go to a save point and go to Gummi Ship. Then, go to any world desired. When you are in the world selected, notice that your Drive gauge is full.
Health refill
When you have low health and no magic or potions, but a fill drive meter, turn into any form. You will have full health.