Lets see here. Yes you can get Him but you might not want him lol. You have no control over him and you cant change any of his Gear. He is forever stuck at level 50 and does about 3k damage with the Masmune. However Since he is Basicly A mirror of the Sephiroth you get in clouds memerys I dont think he can die. If you gameshark is not working you might want to try Codebreakers or track down the old shark i know it works. I have herd however that if you use Sephiroth in your party you run the risk of the game Crashing at Some parts like when fighting sephiroth.