The catch is that this code will only work for the dungeon you are currently in. So you will need to be in the Ghost Ship level for this to work. Changing the last two digits of that code will cause you to warp to different locations within the current dungeon whenever you exit certain doors.

Enter the Ghost Ship level after clearing Afralona.

Enter the code and make sure it's activated. You'll start in Room 07-06 of the Ghost Ship. Go ahead and enter the first door.

Because of the code, you won't end up in Room 07-0A like you normally would. Instead, you'll be warped to a large empty room with incomplete walls and no entrances and no exit.

Look at the subscreen. You are in Room 07-02.

   

This definitely rules out the possibility that the room was accessible through normal gameplay all along and everyone just managed to overlook it because it was hidden so well. What puzzles me is that it isn't exactly what I would have expected. Before I saw it, I pictured a room that had some problem with it that caused the developers to shut it off from the rest of the game, but was otherwise completed. But it actually was never finished at all. And it's a big room, too, so I suspect something more was planned to be put in here as opposed to being just a connector room.

When looking at a map of the level (External Link), you can see that its neighboring rooms are surrounding a huge gap. Seems like it should have been placed right in the middle of Rooms 04 and 05 and/or 07 and 08. (This is actually the front deck of the ship.)

Since the room is so large, another possibility is that maybe the developers originally intended it to be the boss room. Maybe they wanted the boss room to be at the front of the ship, but then decided later to shift it to the back of the ship instead. Even if that was the case, though, I'd still expect the room to look a little more finished than it is.

If the room couldn't be finished why not renumber the existing rooms to accommodate the removal of this one? Or why not just make it an otherwise purposeless connector room like 21 of Deeso or 14 of Tori?

To use this save state, download it into the same folder with your Equinox ROM. Rename it so that both the ROM and the save state files have the same name. Open SNES9X, load the Equinox ROM, then from the SNES9X menu, go to File - Load Game Position - Slot #8.

NOTE: You may want to make a backup of your Equinox ROM and save files if you were previously playing this game, as loading this save state will overwrite your old data.

NOTE: DO NOT USE THE SAVE SPELL WHILE YOU'RE IN ROOM 07-02 OR ELSE YOU WILL BE STUCK HERE FOREVER AND HAVE TO START THE GAME ALL OVER AGAIN!