Tanren Chambers

Tanren Chambers, also called TC by players, is a dungeon that was made as a celebration for having 150 players on PMU at a single time. It has many "chambers" that include all types excluding Fairy. All chambers go up to Floor 99, but they have various alternate endings on lower floors, each with their own pool of items in a Deluxe Box.

Tanren Chambers is found in Tanren, at Tanren City's east gate.

Attributes
When players enter Tanren Chambers, they start in the Normal chamber. A "chamber" is recognized as a variation of Tanren Chambers you can switch to via locked stairs (or "switch points") found inside all chambers on specific floors. These locked stairs point in a direction, which correspond to the position of the chamber it leads to from the one you're in, seen on the map. For example, in the Normal chamber, if a switch point's red dot is pointing northeast, it will always take you to the Fighting chamber.

Every chamber in Tanren Chambers also contains keys known as Tanren Keys, and multiple regular exit stairs on specific floors. To get to specific exits, one has to work their way around the other exits by going into different chambers and back to the chamber with the desired exit. For example, going through Normal chamber from the beginning can only ever take you to its exit stairs on Floor 14. Tanren Chambers will not be counted as completed until any Floor 99 exit is taken. Tanren Chambers is often considered conquered through the Normal 99 exit, which is the only place to obtain a Mystery Part, and the Grand Box, which is Normal 99's unique box type.

Below is a master list of all the chambers in Tanren Chambers. Each article has guides to all exits of the respective chamber.

Article Information
This section is an example. Each chamber article has a table of features specific to that chamber. Every table row represents a floor of that chamber. If any specific cell is empty, it means the respective floor doesn't have that specific point of interest.

If the floor has a key, that floor has a  Tanren Key spawned somewhere on the ground. Those are essential for advancing through the switch points. If the key is marked with  H, that means the key is a hidden item on that floor.

If the floor has an exit, then that means the regular stairs lead to an exit instead of the next floor. If you use the exit, you'll be presented with a Deluxe Box that contains one of the specified items in its rewards table, with the exception of Normal 99, which presents you a Mystery Part as well as a Grand Box. You have to use switches to stay in the dungeon and go farther, which may not necessarily be on the floor with any specific exit. You can click on a exit icon in the table to jump to the respective rewards table.

If the floor has Mew, then Mew can spawn invisible on the floor. Mew can be already spawned on a floor, or can be spawned through Honey or a Summon Trap. When Mew spawns, music on the floor changes to "PMDB) Final Island". Mew can be defeated and will sometimes drop a Life Ring, its family item.

If the floor has a switch point (up to eight per floor), then there's locked switch stairs somewhere on the floor, marked with a red dot that points to the direction it goes. To unlock the stairs, you have to use a Tanren Key. You can click on a switch icon in the table to go to the respective chamber page or hover the pointer over it to display a tooltip with the destination chamber's name.

Fossils
Fossils are one of the few things that make Tanren Chambers really special; most Fossils are exclusive to it. Players can revive Fossils at Red Moon Springs. All Fossils have a 2/8 chance in boxes. The following Fossils can be obtained in the respective chamber exit:
 * Kabuto - Dark B44F
 * Omanyte - Water B74F
 * Aerodactyl - Flying B64F
 * Lileep - Grass B69F
 * Anorith - Bug B74F
 * Cranidos - Rock B59F
 * Shieldon - Steel B74F
 * Tirtouga - Ground B79F
 * Archen - Fighting B80F
 * Tyrunt - Dragon B64F
 * Amaura - Ice B83F

Dungeon Objective
Players often go to Tanren Chambers to discover new items, or get a specific rare item like Fossils.

Restrictions

 * Your inventory must be empty.
 * No Pokémon can be recruited aside from Mystery Eggs.

Tips

 * Most items in Tanren Chambers, including Apples and Ethers, are found hidden alongside being found visible. More supplies may be found using Frisk.
 * The move Recycle will turn Grimy Food into Apples and Grimy Berries into Leppa Berries here.
 * Being in a party with yourself can help keep track of when or if keys are picked up, since the chat will always display a message when a floor is entered.

Trivia

 * Tanren Chambers was created by Sprinko.
 * Before Tanren Chambers' release, Sprinko released the map image as a clue on his DeviantArt page. People correctly guessed it was a map, and each circle represented a different Pokémon type.
 * The positions of the statues at the entrance also resemble the layout of the map. The stairs are in the middle, hence why the dungeon starts at the Normal chamber.
 * Tanren Chambers was created before the Fairy-type existed, therefore no Fairy-type based chamber exists and its type-enhancing items reside in other dungeons.
 * The entrance formerly was fully lit, but later had darkness added to it.
 * As of July 2017, Tanren Chambers became the first and only dungeon where a Legendary's family item could be obtained by the addition of Life Ring for Mew.