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This world is very different from others in that all scenes are music sequences. It is made up entirely of rhythm mini-games, all of which are optional. Clear the tutorial to get a hang of the timing before starting.
|Swim This Way||Default||Get four consecutive Excellents.|
|Part of Your World||Defeat Oogie Boogie in Halloween Town.||Perform at least five Excellent combos.|
|Under the Sea||Defeat the Hostile Program in Space Paranoids.||Have the mermaid icon reach the top of the bar. Press only when you see Ariel; ignore Sebastian.|
|Ursula's Revenge||Defeat the Grim Reaper in Port Royal.||Ursula's health gauge must be equal to or less than 25%. Sora receives the Mysterious Abyss Keyblade as a reward for defeating Ursula.|
|A New Day is Dawning||Defeat the Groundshaker in the Pride Lands.||Earn at least 30,000 points. Sora receives an upgrade in his Blizzard magic and Orichalcum+ as a reward for clearing the world.|