So, I have been playing through the Kingdom Hearts games chronologically in preparation for the NA release of Dream Drop Distance. I am currently playing through Kingdom Hearts after playing through Birth By Sleep, and it seems like 358/2 Days and Chain of Memories happen around the same time. So, I was wondering if it is worth buying and playing through Chain of Memories? From all that I've heard, it's the worst entry of the series, but does it add anything important to the story?