A treasure box (Japanese: たからばこ Treasure box) is an item in Pokémon Mystery Dungeon: Explorers of Time and Explorers of Darkness, Pokémon Mystery Dungeon: Explorers of Sky, and Pokémon Mystery Dungeon: Gates to Infinity.
In the Generation IV games, treasure boxes can contain different kinds of items that range from common food items to rare trade items that can be swapped in the Croagunk Swap Shop. They have to be appraised first at Xatu Appraisal located at Treasure Town before one can obtain the hidden item within the box. In certain dungeons, such as Zero Island North, Zero Island East, Zero Island West, and Zero Island South, there will be locked sections in which one must use a key to obtain the box. There may also be water blocking the box. These boxes will hold items such as legendary specialized items and Wonder Gummis. All boxes, with the exception of end-of-the-dungeon Deluxe Boxes and locked room boxes have random contents, though certain items will be unlocked as the game continues.
In Pokémon Mystery Dungeon: Gates to Infinity, they may contain Team Skills after being opened by Rampardos Box Buster. Unlike in previous games, Gummis do not exist and Max Elixirs are often obtained instead, although it is still possible to find other items such as holdable items, and Gold Bars in amounts from one to five. The Team Skill: Collector enables the player to find more Treasure Boxes from defeated enemies. There is a 15 floor DLC Map named Skill Treasury that enables more boxes to be dropped by defeating Pokemon as well. Boxes can also be found in chambers that either require keys and/or a specific Pokémon type to enter. These chambers can be found with Upgrade 2 of the Detour Guide. Upgrade 3 of the Detour Guide also sells these keys for 1,650 Poké and exchanged for 5 Gold Bars in Cofagrigus' GLORIOUS GOLD Shop in Post Town.
In both Generations, contents of the boxes are predetermined at the moment it's generated, meaning that opening the box will always have the same result.
List of treasure boxes