In FFVII theres 2 secret characters, Vincent Valentine and Yuffie Kisaragi i already made a instructable on getting Vincent so heres how to get Yuffie. You have to do a task to get them, a different one for each. Getting Yuffie is pretty easy so dont worry about doing to much work.
Step 1: Before you can get Yuffie....
Yuffie is only available after you go to the Mythryl Mines. Once youve been there, you can find her in any forest on the world map
Step 2: Fighting Yuffie
While walking in a forest on the world map eventually you will get into a fight with Yuffie. She is not that hard but the next part is hard. She will start talking to you but you HAVE to pick the right things to say or she will take something from you and run away
Step 3: Talking to Yuffie
When talking to Yuffie this is what you have to say,
1. Not interested
3. Wait a second!
4. thats right
5. Lets hurry on
On the last one DO NOT pick "whats your name". Pick "Lets hurry on" and then Cloud and the rest of your party will walk away. Then she says wait dont you want to know my name and then you get to choose a name for her. Also, DO NOT save bfore talking to Yuffie or she will run away.