When he's in the tornado, counter him and then attack the boxes he throws at you
you know hwne the antilon throws those big blocks at you that explode? Well you hit them with your keyblade and they fly at him and hurt his health, once you throw it at him three times he will fall down and you will be able to defeat him
Defeat Sephiroth.
What boss.
there is a great guide at supercheats.com
Sephiroth is an extremly powerful enemy. he is the drak side of cloud basically. In kingdom hearts you can defeat him in the collusem but only cloud can truly defeat him.
You have to hit its hands.
you suck there ear
defeat the small jellyfish in atlantica
Living Bone
You have to defeat Cloud in the Hercules cup.
nobody knows
By beat the life out of him