is it possible to return to midgar after diamond weapon kills rufus every time i got to midgar theres a man at the gate saying he lost his key what do i do?

Yep definently its possible,go to bone country or town and dig for it.

Possible, but not all that worthwhile.

correct me if im rong but dont you get Tifas ultimate wepion in Midgar?

if you dig at bone town for normal treasure then dig where there is an X scratched in the ground you get a key

11 squall you are right. It's located in the wal-mart I think.

Squall is right, but is a weapon with no materia growth really all that useful?

it sucks, but you can see Aeris, and do nothing, and loose your time, and going around, and....

Balam just said it.

id get tifa's last weapon, just cause its the strongest, and for completion purposes

whats a little effort going to get it eh! ^^