Zelda 2 takes place in the wider Zelda 1 world post climate change
Mega Man ZX also has the converse of this, where there’s a segment whose design and enemy/obstacle placement is a clear callback to the opening sequence of Mega Man X, with no real indication that it’s actually the same place. Is there a thread for that? The first thing that comes to mind are all the sequences where a game suddenly becomes Donkey Kong.
the Royal Mausoleum that comprises all of King’s Field 1 is partly revisited at the end of King’s Field 3! a fun fact lost on every western player because KF1 never came out here. except me i guess, since i actually played 1 before 3
other fun fact: every game in the series features a hidden room near the start with a chest containing a leather shield, guarded by a skeleton. KF3 has two instances of this, because the royal mausoleum has the original room complete with a skeleton you can one-shot and a leather shield thats now worthless to you