He is made out of matter, and as long as you believe hard enough, your attacks will be able to damage him. The in-game mechanic to support this is hammering on the select button as you attack Sephiroth. If you do not do any damage, you are not pressing fast enough.
In what game? FF7? Crisis Core? Dissidia? Kingdom Hearts? He's in more than one game, so the best answer I can give you is look up an IGN walkthrough or something.
In Kingdom Hearts 2 there are 2 kinds of "Special" Keyblades. The first kind is the Ultima weapon which is a Synthesis item. The recipe can be found in the Mansion at Twilight Town. The second is the Fenrir Keyblade. This Keyblade is obtained after defeating Sephiroth in Hollow Bastion or Radient Gardens. He can be found past the spot called "Crystal Fissure"
no, Kingdom Hearts was made for the PS2 only, and there is a new KH game coming out soon for the DS
By attacking her.
Yes, Sephiroth, originally from Final Fantasy VII, appears in both Kingdom Hearts and Kingdom Hearts 2.
Sephiroth is voiced by Lance Bass.
around 29 in kingdom hearts 2
Defeat Sephiroth.
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 get it in kingdom hearts final mix after defeating sephiroth
You cannot get Mickey's Keyblade in Kingdom Hearts II.
No. Sephiroth is an optional battle that only takes place between Sora and Sephiroth, with no other help. King Mickey cannot help you in this battle.
You cant
He dissapears with Cloud
Get Kingdom Hearts 2. That's what I did. Or you can try and beat sephiroth and all those extra things.
I don't think Sephiroth is in that game.