Okay, so here's another update with some actual content for once.
Regarding my last post, I decided not to include the "hidden" bosses to avoid unnecessary clutter. Besides, if you're playing the game and following the story, you should expect them to attack you in those specific instances. There are a few maps later on where I've actually included a "before" and an "after" version since it was warranted.
Anyway, I've been playing around with the format a little, fixing some font errors I did as well as adding a border to make the label text more readable, changing some location names based on the actual game text, rearranging rooms placement and other such stuff.
-Bandit's Lair has been renamed to Bandit's Cave. The game makes it clear that Bandit is an actual guy so that part is unchanged, and since he's in a cave...
-Sea Castle has been renamed to Undersea Castle. The game calls it The Castle at the Bottom of the Sea but that's way too long. I changed it for Undersea to be consistent with Undersea Town.
-Byak-Ko's Hideout has been renamed to Sacred Palace. It is named as such in the game by an NPC as the resting place of the White Sphere but it wasn't obvious at first that he was talking about this place.
I've updated the first post with the following:
-World 1: Overworld, Base Town, Town of Hero, Castle of Armor, South Town, Bandit's Cave, Castle of Sword, Castle of Shield
-World 2: Overworld, Port Town, Northeast Island Town, Old Man's Cabin, Seafloor, Undersea Town, Undersea Castle
-World 3: Overworld, Sky Town, Flying Castle, Hidden Town, Resistance Base, Jail, Sacred Palace
-World 4: Overworld, Southwest Town, Library