In the credits of Kingdom Hearts HD 1.5 Remix, clips of the games featured in this collection were shown, hinting at the collection.

2.5 Remix was re-released along with 1.5 Remix on the PlayStation 4 on March 28, 2017, on the Xbox One on February 18, 2020, on Windows via Epic Games Store on March 30, 2021, and a cloud version of the game for the Nintendo Switch was released on February 10, 2022. A third collection, Kingdom Hearts HD 2.8 Final Chapter Prologue, was released on January 24, 2017. Additionally, the collection features a cinematic remake of Kingdom Hearts Re:coded that features remastered cutscenes from the original game as well as new content. Kingdom Hearts HD 2.5 Remix includes Kingdom Hearts II Final Mix and Kingdom Hearts Birth by Sleep Final Mix in high definition and with trophy support.

A successor to the series' HD 1.5 Remix collection, it was released for the PlayStation 3 in Japan in October 2014 and internationally two months later. Kingdom Hearts HD 2.5 Remix is an HD remastered collection of three games in Square Enix's Kingdom Hearts series: Kingdom Hearts II, Birth by Sleep and Re:coded.

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