Zones 55, 59, and 84 are not connected to any of the other zones, and are impossible to access unless the zone selection hidden command is used. Though a hidden entrance to zone 59 does exist in zone 50, its location is overlapped with a block, making it impossible to enter. There are also several items that do not appear at all in the game, but exist in the game's data. It is unclear why these zones and items remained in the final version of the game.