Final Fantasy 7 Side Quest - Key to Midgar
During Disc 2, your team will eventually have to parachute their way into Midgar. Actually,
this isn't the only way to get back in. On the World Map, run into Midgar as if you were
running into any other town or place and you'll be near the Number 7 gate later on in the
game and there will be a man there who seems to have lost his key. He gives you a hint
that he might have dropped it near an excavation site. This is your hint that he dropped it
around Bone Village.
At Bone Village, talk to the foreman and tell him you're looking for 'Normal Treasure'. When
placing the excavators around Bone Village, place them around the top area and set off the
blast. The next morning, when they are all done, open the treasure chest on the bottom level
of Bone Village and the Key to Sector 5 should be in there. If not, try again. When you
obtain it, you can enter Midgar through the Number 7 gate at any time.