Gaur Plain (ガウル平原, Gaur Plain) is a stage in both versions of Super Smash Bros. 4 and in Super Smash Bros. Ultimate, based on an area from Xenoblade Chronicles. Shulk is fought here for his unlock battle in Ultimate.
There are two main rock platforms high up on each side of the stage with walk-off edges, with a giant chasm in between. A collection of smaller and mostly soft platforms appear below the main platforms, with the exact layout changing between the two versions of the game; the Wii U version of the stage also features, near the bottom, some more soft platforms and hard platforms with springs on them: characters can use the springs to bounce up to the top platforms. The Wii U version also has an extra soft platform on the upper left side, below the main platform.
In the 3DS version, the top blast line is very close to the stage, while in the Wii U it is much farther. The side blast lines are also much closer to the platforms compared to the Wii U version.
The background shifts through a day/night cycle. In Super Smash Bros. for Wii U and Super Smash Bros. Ultimate only, there's a chance that Metal Face will appear at night, attacking the players with his claws and laser beams. His laser beam attack can target any of the two upper platforms, making them fall and destroying the platforms underneath. The original layout is automatically restored some time after he is defeated. If attacked enough, Metal Face can be defeated, causing him to explode; the explosion harms all characters in its range except for the one who landed the finishing hit. However, he may return when night falls again.
Ω forms and Battlefield form
In Super Smash Bros. 4, the Ω form is set on a rocky platform that is completely flat with a pillar at the bottom that extends below the blast line, which is solid in the Super Smash Bros. for Wii U version but just part of the background in Super Smash Bros. for Nintendo 3DS. The day/night cycle still occurs.
In Super Smash Bros. Ultimate, the main platform of the Ω form and Battlefield form is similar to SSB4's Ω forms; however, it is resized and reshaped to match Final Destination and Battlefield, respectively. The three soft platforms of the Battlefield form are metallic and are unique to this form.
In Xenoblade Chronicles, Gaur Plain is a location within the greater Bionis' Leg area. It is a lush, large plain featuring bodies of water and several peculiarly shaped rock formations. Shulk and his friend Reyn traverse it in their path to the Bionis' Head. In Xenoblade Chronicles, the plain is much closer to the Bionis' knee than in SSB4.
The gigantic figure seen in the distance is the Mechonis, the other of the two gigantic beings which make up the world in Xenoblade Chronicles. It is visible from Gaur Plain in the original game, but, due to the aforementioned position change, in this stage it appears to be farther away.
While the Ω form of this stage is allowed, the standard stage is banned from tournaments due to it being very open, allowing for camping. Metal Face disrupts and even destroys the stage occasionally in the Wii U version. The stage also has walk-offs.
Super Smash Bros. for Nintendo 3DS
Super Smash Bros. for Wii U
Super Smash Bros. Ultimate