Pirate Treasures represent a clandestine and highly uncommon collectible which made its debut in the game Yooka-Laylee. Characterized by a brilliant, lustrous crystal skull, Pirate Treasures are adorned with two exquisite purple hued diamonds that serve as eyes, surrounded by a dazzling and shimmering visual effect. Due to the fact that Stop ‘n’ Swop in the Banjo-Kazooie series was such a popular topic among players, Playtonic Games came up with a similar feature. Instead of different colored eggs and a big ice key, the developers opted for crystal skulls, known as Pirate Treasures, while each Grand Tome of Hivory Towers contains a Pirate Treasure, usually hidden at a spot that is easily overlooked by players. According to the Internet, the skull located in the fifth world, Galleon Galaxy, is the hardest one to find since its hiding spot is atypical in comparison to other collectibles in the game. Whenever the player obtains a Pirate Treasure a dark, creepy and dramatic sounding organ tune plays, whereupon the treasure disappears for eternity in Yooka’s inventory. Beside of that, all Pirate Treasures that have been found will not appear in a separate window like the Stop ‘n’ Swop collectibles did in Banjo-Kazooie. At the moment, the real purpose of these skulls is unknown, but due to the similarities with Stop ‘n’ Swop players can assume that Pirate Treasures will unlock special rewards in the sequel games of Yooka-Laylee. Although they have no use yet, the player can unlock three achievements by finding all five Pirate Treasures.