This collection consists of the following collections. To see which each of these collections collects, see that respective link:
- Kingdom Hearts HD 1.5 ReMIX
- Kingdom Hearts HD II.5 Remix
Like Kingdom Hearts HD II.8 Final Chapter Prologue and unlike the Playstation 3 versions, all 6 six games will run at 60fps for the first time while cutscenes still play out in 30fps. Load times have also been drastically reduced.
Upon its initial release in Japan the increased framerate caused many issues in Kingdom Hearts 1.5 and 2.5. The new framerate introduced problems with the physics engine and made certain boss fights in both games much harder to the point where some were not winnable. The save crash bug, where the game would sometimes crash when saving the game, that was prevalent in the PS3 versions still remained. Most of the issues were fixed in what served as a Day 1 patch in North America and Europe, though some issues with boss fights in Kingdom Hearts 2.5 still remain.
While Kingdom Hearts Final Mix has no Theater Mode, a free expansion allows Final Mix to have Theater Mode for the compilation.