Final Fantasy VII Cheats

Get into Midgar again
If you want to get back into Midgar again, here is what to do. First, go to Midgar and talk to the person who is standing just outside the gates. She'll say that she left a key at Bone Village.
Go to Bone Village and have the diggers dig for "normal treasure", and spread them all around the entire village. It may take a few tries, but it'll eventually happen, and you will recieve a key that allows you back into Midgar.