go to Nibelheim go to Tifa's House, on the piano play
Do Re Mi Ti La Do Re Mi So Fa Do Re Do
press start and she will say she has the sheet music
in the sheet music she finds a note and the limit break
First start the game with the code on.Then when the title screen appears turn the Gameshark off.
Next load a saved game on the 1st or 2nd CD. Next go to PHS and remove the 3rd character on the party screen. Now turn the Gameshark back on and Sephiroth will appear! Now turn the Gameshark off and save your game so you will always have Sephiroth. The codes are below.
The master code is 80000000-0000
The code itself is 8009B376-FF0A