First Kingdom Hearts game I played.
But besides that I found the game enjoyable, it did take me a while to get the card system down, but once I did, I started having fun.
The game has most of the same worlds as the first one with the exception of Twilight Town, and the entire game takes place in a big castle called Castle Oblivion which lives up to its name because as Sora completes each floor he begins to lose his memory, not knowing that is all part of a plan led by a mysterious group of people known as the organization, and to carry out their plan they use a beautiful young witch named Namine to change and alter Sora's Memories
The game's graphics are pretty good for a GBA game, and though the controls can be difficult the little screen doesn't help, this game is still a great addition to the Kingdom Hearts series and one of the reason I feel in love with the series.