As mentioned above, this is a pretty radical departure from the other games in the series, and to put it bluntly, it just isn't nearly as good. In fact, you will probably not like it at all at first. I know I had trouble getting into it at first, despite having already played through the GBA version of the game and despite the excellent in-game tutorials present here. It did grow on me as I pressed on, though, and I think it will grow on you as well. Everything here is about the cards. There's no equipment, no items, no AI characters, no Gummi Ship, nothing of the sort. The cards are your Keyblades, your magic attacks, your healing items, and even the way you open up new worlds to explore. Of course, I use the term "new worlds" loosely, because nearly all of the Disney worlds featured in the game are recycled from the original Kingdom Hearts game. Even the boss battles are essentially the same, save for the duels against Organization members. It isn't terrible, but I do miss roaming freely through the worlds, changing equipment, and having Donald and Goofy there to help out in battle. This just isn’t as enjoyable or as addictive as other Kingdom Hearts games, although the fact that fights now take place on a 3D battlefield instead of the 2D plain of the GBA version is an improvement.