Release order is KH1, Chain of Memories, 2, 358/2 Days, Birth By Sleep
Chronology order is Birth By Sleep, KH1, [358/2 Days, Chain of Memories,] KH2.
Note that Chain of Memories actually takes place about 1/5 of the way into 358/2 Days. Technically 358/2 Days starts before CoM but ends after it.
Ideally I think it should be played in release order, but if you're actually interested in the whole 'universe' you'll end up replaying the older games anyway because there's some stuff in the older games that you'll probably miss until you play the later ones.
@Pokebis if you meant those other games I have never played Okami or IIDX, and DDR isn't much of a "play from start to finish" kind of game. If you meant skip CoM and 358/2 Days, you can get away with skipping 358/2 Days and still understand everything that's going on, but the first few hours of KH2 probably won't make any sense if you don't play Chain of Memories.
Chronology order is Birth By Sleep, KH1, [358/2 Days, Chain of Memories,] KH2.
Note that Chain of Memories actually takes place about 1/5 of the way into 358/2 Days. Technically 358/2 Days starts before CoM but ends after it.
Ideally I think it should be played in release order, but if you're actually interested in the whole 'universe' you'll end up replaying the older games anyway because there's some stuff in the older games that you'll probably miss until you play the later ones.
@Pokebis if you meant those other games I have never played Okami or IIDX, and DDR isn't much of a "play from start to finish" kind of game. If you meant skip CoM and 358/2 Days, you can get away with skipping 358/2 Days and still understand everything that's going on, but the first few hours of KH2 probably won't make any sense if you don't play Chain of Memories.