>>527200563
>Was the Shadow that was sealed at Prison Island was a replica by Gerald
no
>or the original Shadow that was ejected towards the surface and recovered?
yes
>How do we know that SA2 Shadow isn't just a faker?
because they dropped the plotline entirely and his story would make absolutely zero sense now if they reintroduced it, this isn't fucking Metalgear.
most likely it was part of the original plan to "revive" him instead of Heroes' "android" plot that also basically went nowhere