kingdom hearts is kingdom hearts not Yu-Gi-Oh! omg what a mess up this game came to be. Well at least its worth playing.
The fact that you use cards in this game and run out sucks a lot and lets not forget that your party members or allies are no longer out on the field with you the whole time instead they can only be called out for a very short time attack when you use their cards. However the more cards you have for that ally the stronger and longer the attack so yea thats ok but the game is still not what it should be.
The worlds are pretty much all from the 1st game except 1 or 2 new ones if i remember right.
I dont have much else to say about this game except its worth playing because it is still fun even though it kinda sucks and the graphics are terrible compared to the 1st kingdom hearts.