Amazing, simply put.
And I have to agree.
The gameplay was a bigg improvement, more combos, Forms, and Limits.
The addition of Forms made the gameplay cooler and faster.
Heck, the battles themselves were always hectic and fast.
Quick thinking is always around.
Sora looks more badass, and is no longer a kid. The games a little more serious and darker, but not for the worse. They did a good job with mouth animations, in my opinion.
The music is, simply put, amazing and epic. Intense. The battles are great, especially with Reaction Commands, making you even stronger, and just letting Sora look badass.
You get to revisit all those old worlds from Kingdom Hearts 1, along with new worlds too.
My only real problem was the MP. Should-a just left it at bars in my opinion.
Overall, this game is a must-have for a PS2 owner.