Great Bay Region

The, also known as the Ocean, the Sea, and , is a recurring location in.

Features and Overview
The MM3D: is located in the west of MM3D:. It is a large shoreline that is home to the aquatic race of NaN Zoras from MM3D:, the NaN Beavers atop the MM3D:, and NaN Gerudo Pirates. Its waters have turned warm and murky as a result of the NaN Monsters plaguing the MM3D:, threatening those who depend on the sea for life.

The entrance to the MM3D: is barricaded by fences, making it inaccessible except by jumping the fences by MM3D:.

Great Bay appears as a stage in. The stage features the SSBM: as the main platform. A rock platform stands to the left and the Giant Turtle to the right; the palm trees on his back serve as two smaller platforms. After a while, the Turtle will hide underwater, reappearing after a set amount of time.

Tingle makes a cameo appearance floating on a balloon that can be used as a platform. If a player stands long enough on the balloon, or it is pierced by an attack, it will burst and drop Tingle on the platform below. Eventually, Tingle will blow up another balloon.

The Four Giants and the Moon also make a cameo appearance in the background. As the fight progresses, the Moon will come closer to the ground. Eventually, the Four Giants will appear and stop the Moon, returning it to its original position.

Great Bay returns as a stage in with updated graphics to closely resemble its  appearance. Like every other stage, it also features a flat Omega form and a Battlefield form with three extra platforms.