The Best Kingdom Hearts Games, Ranked
6. Kingdom Hearts: Chain of Memories
Chain of Memories functions as the missing piece of the Kingdom Hearts story, set in between the first and the second games. In it, Sora and his friends venture to Castle Oblivion, a place that causes them to lose their memories.
Sora must travel through the different floors of the castle in search of his friends, which are all built out of his memories of the first game. Chain of Memories also introduced us to the villainous Organization XIII, and you even take down a few of its members in the game.
Chain of Memories first appeared on the Game Boy Advance (later getting a PS2 remake), and its gameplay was a huge deviation from the first game.
It featured a card-based action system, where players built a deck and used different cards to perform actions in combat. There was also a surprise for fans after they beat the game as Sora, as another section of the story opened up, this time having you play as Riku.