Re Mind will tell a separate story, the action of which takes place shortly before the climax of the main plot. Sora goes to the Blade Keys cemetery to save Cairo. There he meets the hearts of all seven Light Keepers and experiences the decisive battles of each of them.
Players are waiting for difficult fights with thirteen members of the Organization XIII. The strongest of the incorporeal easily deal with Sora and his companions, it is worth a gap. So to win, you will need to accurately calibrate the time of attacks and defense.
For fights, you can choose playable characters from a short list. And in some battles, associates can even come to the rescue.
So far, only part of the information is open on the page, more will become known over time. In particular, they promise to tell us about a secret episode with a secret boss.