The Secret Episode is the final scenario of the ReMind DLC. It is unlocked after clearing the ReMind scenarios and Limit Cut episode.
|ReMind DLC Walkthough||Limit Cut Episode Guide|
The secret boss of Kingdom Hearts 3 ReMind is Yozora. It is recommended to have obtained the Ultima Weapon before taking him on.
After defeating Yozora, the secret ending An Oath to Return will be unlocked. You will also receive the Crystal Regalia+ accessory which grants big boosts in Strength and Magic, and a moderate boost in maximum AP.
The Premium Menu is also unlocked after beating Yozora in the secret episode. This lets you access the Fast Pass and Black Code options to make the game easier or harder depending on your preference.