The Desert Temple in Cacti Canyon.
Cacti Canyon is third-party stage in Super Smash Bros. Phi & originated from Minecraft Dungeons.
Role in the Superspace Emissary[]
Endersent's Revenge[]
After the battle on Mt. Fuji, Denji & Strafe pass out after using all their energy, when they wake up, they find themselves in Cacti Canyon. They find a note attached to an outpost that says: "Denji & Strafe, you have been summoned to fight the Endersent at the Desert Temple here in Cacti Canyon." It was written by someone unknown, but the 2 decide to listen to the note, fight the monsters on the way, & reach the Desert Temple to fight the Endersent.