"[Collaboration: Xenoblade Chronicles 2]
The southern sky from the middle of the largest bridge. The eastern sky from the skull's left eye. The southeastern sky from the peak of the tall, pierced snowy mountain.
Look to the night sky at these locations and find the red shooting stars!
— Adventure Log
Rex's costume (Breath of the Wild)

Rex's costume

Collaboration: Xenoblade Chronicles 2, also known as [Xenoblade Chronicles 2], is a side quest from The Legend of Zelda: Breath of the Wild. It is unlocked upon installation of a game update released on November 9th 2017. It requests Link to find and discover the "Salvager" treasures, hidden inside three new Treasure Chests containing the "Rex's costume", inspired by Rex from Xenoblade Chronicles 2. The chest containing the Salvager Headwear is buried near the Bridge of Hylia in the Lake Hylia region. The chest containing the Salvager Vest is buried at the Skull Lake in the Deep Akkala region. The chest containing the Salvager Trousers are buried at Hebra Peak in the Hebra Mountains region, although the quest indicates that it is located in the southeast.