Mystery Dungeons

Mystery Dungeons (Japanese: 不思議のダンジョン mystery dungeon), commonly abbreviated to dungeons, are areas in the Pokémon Mystery Dungeon games. Dungeons are where rescues, jobs and other explorations take place, along with where Pokémon can be battled and recruited. Dungeons can be found pretty much anywhere in the Mystery Dungeon games. Dungeons are labyrinth-like structures with 3 to 99 floors that the player must traverse to complete missions and are home to many hostile Pokémon. They change layout every time they are entered, making it impossible to predict how to get through beforehand. Dungeons may also have a set type of weather effects that remain for a whole floor unless a weather changing move is performed.

Access
To enter one, a player simply walks to the crossroads near their Team Base or Wigglytuff's Guild, and selects the dungeon they would like to visit from a pop-up menu. Some dungeons, such as Beach Cave and the Hidden Land, can be visited more directly. Some dungeons are also visited without the crossroads as part of the storyline. Visiting dungeons is required to advance the storyline, as new areas must be accessed through them.

Floors
Floors consist of multiple rooms that are interconnected by hallways. Using a One-Room Orb turns the whole floor into a single room. Each time a player visits a dungeon, its floor layout and the items inside it are randomized. Dungeons consist of multiple floors and waypoints, which can be traversed between by using stairs. Tiny Woods has the fewest floors with 3 (discounting the Explorer Maze of the Marowak Dojo which has one). The dungeons with the most floors have 99; they are Joyous Tower, Buried Relic, Purity Forest, Wish Cave, Silver Trench, Western Cave, Zero Isle South, Zero Isle Center, and Destiny Tower. To advance in the dungeon, players must find the stairs which take them to the next level. Wild Pokémon's levels increase as the player progresses through the dungeon's floors. Dungeons can also contain sleeping Pokémon, which do not move until attacked or a member of the player's party steps on a directly