World -1 (FDS)

''Note: This is World -1 on the Famicom Disk System. If you want to see the original world, go to World -1.''

This is the first level of the Minus World on the Famicom Disk System. This level is basically 1-3 underwater. This level also features a white Bowser, castle-themed enemies and even Peach floating in mid-air! The entire level is water. This level is completable, even though the Flagpole doesn't have a flag.