Square Enix and Disney's Kingdom Hearts: Chain of Memories was first released for the Game Boy Advance in Japan, expanding the Kingdom Hearts series with new gameplay and story elements.
The game was released in North America, allowing Western audiences to experience the continuation of the Kingdom Hearts storyline on the Game Boy Advance.
Kingdom Hearts: Chain of Memories was made available to European audiences, completing the game's initial worldwide release on the Game Boy Advance.
Square Enix announced a remake of Kingdom Hearts: Chain of Memories for the PlayStation 2, featuring enhanced graphics and added content, expanding the game's reach and appeal.
The enhanced remake of Kingdom Hearts: Chain of Memories was released for PlayStation 2 in Japan, bringing the game to home consoles with improved visuals and additional features.
The PlayStation 2 remake of Kingdom Hearts: Chain of Memories was released in North America, allowing a wider audience to experience the game on a home console.
Kingdom Hearts: Re:Chain of Memories was released in Europe, completing the remake's global distribution and extending the game's legacy to European players.
Sora and his friends begin their exploration of Castle Oblivion, unaware that the castle causes them to lose their memories.
Sora has multiple confrontations with members of Organization XIII, mysterious individuals with their own agenda within the castle.
Sora fights against DiZ, an enigmatic figure working against Organization XIII and connected to the events within Castle Oblivion.
Naminé reveals her ability to manipulate the memories of Sora and his friends, playing a key role in the events within the castle.
Sora faces illusions and shadows of Riku, as well as the Darkside Heartless, representing the darkness inside Riku.
Sora confronts and defeats Marluxia, who led the plot to overthrow Organization XIII by controlling Castle Oblivion.
After the manipulation by Naminé and the events of the castle, Sora falls into a deep sleep where his memories can be restored at a later time.
Riku goes through his own journey in the castle, confronting his inner darkness and ultimately freeing himself from it.
Riku battles the Ansem replicas and fights to protect Sora and put an end to Organization XIII's plans within the castle.
