What to Do After Clearing the Main Story
Taking on the Battlegates is a great way to acquire rare items and equipment. These are scattered throughout the various worlds and allow you to battle strong enemies not part of the game’s main story. You’ll also obtain unique selfie gestures upon clearing a certain number of them.
The secret ending “Yozora” can be viewed after completing the main story by shooting all Lucky Emblems scattered throughout the various worlds.
Clear Critical Mode
To give yourself a challenge, you can try clearing Critical Mode. Note that this difficulty setting features extremely powerful enemies and certain gameplay changes that make it a tough ordeal. Clearing it, however, rewards you with the key item Proof of Times Past. This allows you to obtain the Oblivion Keyblade in version 1.07 of the game.
Obtain Oathkeeper and Oblivion Keyblades
The Oathkeeper and Oblivion Keyblades can be obtained by obtaining the key items Proof of Promises and Proof of Times Past. Proof of Times Past is rewarded for collecting all 90 Lucky Emblems, while the Proof of Times Past is received for clearing the game on Critical Mode.
Kingdom Hearts 3 Re:Mind DLC
The Kingdom Hearts 3 Re:Mind DLC can be accessed after clearing the main story. More information will be added when the DLC comes out.