Conditions to Unlock the Secret Ending in Kingdom Hearts 3
Number of Lucky Emblems photographed
To unlock the secret ending of Kingdom Hearts 3, the player must have photographed all the Lucky Emblems (Hidden Mickey Marks) across the various worlds that the player visited.
Lucky Emblem requirement varies according to the game difficulty
The number of required Lucky Emblems to shoot depends on the chosen game difficulty. When playing on Beginner mode, shooting all Lucky Emblems is only optional.