KH is an awesome series to get into, but with the port of KH Re:Chain of Memories, so much more could have be done.
The sequel to the first Kingdom Hearts, Chain of Memories, was released on the Game Boy Advance and not on the PS2. That was a few years back and now SquareEnix finally ported it over to the PS2 as KH Re: Chain of Memories.
So enough with the history lesson.
With Re: Chain of Memories, it is a direct port from the GBA hand held. It has improved graphics and different game controls to fit onto the PS2 console.
The pro's and con's for this game is up to whoever picks it up, since the card battle system is still there as from the GBA version except it is formatted into a 3D world. Also, much of the content in the game hasn't changed from the original port as well.
So if you haven't tried Chain of Memories and do enjoy the Kingdom Hearts series, then pick up a copy and try it out. But for those who have played before; "eh, been there; beat that" is the feel for Re: Chain of Memories.