Chain of memories

Answer 1

Chain of memories is a game on the DS that serves as the connection between Kingdom Hearts and Kingdom Hearts 2.

In KH2, Sora, the hero of the first game, loses his memories and is asleep in a weird flower pod in a lab basement, and many things are hinted at or implied or referred vaguely back to in the second game that happened in chain of memories, especially in the journal, as over half of the organization 13 is kaput, and the journal is not that specific, and that is for the reason that they want to get chain of memories and figure it out yourself.

SPOILER ALERT!

In chain of memories, sora and his friends, Donald and goofy, have to choose to press forward and forgoe their memories or keep their memories and not enter Castle Oblivion.

Riku goes off and takes the form of Ansem to save Sora and Kairi, and he teams up with King Mickey and the real Ansem to help put back the real hero, Sora, the keyblade master, to where he was before he was who-dooed, in order to put Org. 13 in their place finally. Then there's the Namine subject, and the experiments, the 4 keyblade masters, and the fact that sora's keyblade was originally Riku's, which is why he was able to take it back in the first game in front of Hollow Bation, though Riku's heart was tainted, unlike sora's, which was why Sora got it back and had Kairi inside of his pure heart.