Mt. Moon (PMU 7)

Mt. Moon is a dungeon reintroduced from PMU 6, placed in Archford east of Boggy Wastes. To access it, you must have Rock Smash. This dungeon has two paths and a secret Miniboss; which path you continue on depends on which stairs you take at Floor 20. Keep your Rock Smash Pokémon for this dungeon as there is a maze on Floor 10 that requires it.

The alternate path in this dungeon includes different Pokémon and items.

Low Floors (1-15)
In these beginning floors, the scenery consists of cavern walls and random rock spikes poking from the ground. The ground is rocky, and there's a bit of darkness covering the place.

After floor 10, there is a section which requires Rock Smash to get through. There is a Lunar Key hidden in the bottom-left corner that you need to get to open the locked doors and progress onto floor 11. Apples are hidden in parts of this floor, as well as an Escape Orb at the floor's entrance in case you forgot your Rock Smasher.

Middle Floors (16-30)
The next few floors have a bit more grayish ground with small plants popping from it. The walls are more wavy, and the darkness still resides. Water starts appearing on these floors.

On these floors, there will be multiple sets of stairs. Only one of these stairs are real: The others are Pokémon spawner traps!

After floor 20, there will be a room that endlessly loops with many stairs. One stair has a blinking star next to it: this will bring you on the normal path through Mount Moon. The one left and up from where you spawn in brings you on the alternate route; it ends at floor 40, (you start at 21) and has different scenery and a different mix of the same Pokémon you'll see in the normal route. Lastly, one of the stairs brings you to a room with two Clefable and some Clefairy who will attack you. Once you beat them, you will be brought back to the Floor 20 interlude. Please note that their staircase does not have a "Do you want to continue?" option and will immediately warp you in. All the other stairs at this interlude simply respawn you where you first came in.

After floor 30, there is a rest stop with a Kangaskhan statue.

Upper Floors (31-45)
On these floors, the grayish floor still resides, but the walls become a bit more purple, the darkness increases, more plants can be found popping from the ground, and water can be found in smaller groups.

Highest Floors (46-60)
On these final floors, the scenery drastically changes. The walls are made of moon rock and the floor is extremely blue. There are green walls here and there and the water becomes darker. The darkness also increases once more.

There is a warp puzzle after floor 50. The warps you need to take, starting from the top left room, are Bottom Right, Bottom Right, Top Right, Bottom Left, Bottom Left.

Floors (21-40) (Alternate Route)
On Floor 20, you have the option to choose an alternate route. The walls are made of green rocks while the floor is a rigged rock floor. The stairs are flipped around as well.

Pokémon
''Pokémon in bold are recruitable. Please visit the Recruitable Pokémon page for more information.''

Low Floors (1-15)

 * Kirlia
 * Marill
 * Umbreon
 * Mr. Mime
 * Gabite
 * Delcatty
 * Clefairy
 * Jigglypuff
 * Metang
 * Mandibuzz
 * Chansey
 * Lunatone
 * Golbat

Middle Floors (16-30)

 * Lunatone
 * Gardevoir
 * Clefable
 * Mime Jr.
 * Wigglytuff
 * Metang
 * Metagross
 * Chansey
 * Blissey
 * Marill
 * Azumarill
 * Golbat
 * Garchomp
 * Gabite
 * Skitty
 * Umbreon

Upper Floors (31-45)

 * Delcatty
 * Abra
 * Blissey
 * Garchomp
 * Lunatone
 * Absol
 * Aggron
 * Umbreon
 * Whimsicott
 * Metagross
 * Mandibuzz
 * Gardevoir
 * Golem
 * Wigglytuff
 * Crobat
 * Clefable

Highest Floors (46-60)

 * Porygon-Z
 * Mismagius
 * Gengar
 * Togekiss
 * Houndoom
 * Clefable
 * Metagross
 * Absol
 * Garchomp
 * Slaking
 * Wigglytuff
 * Xatu
 * Mawile
 * Blissey
 * Mandibuzz
 * Green Kecleon

Floors (21-40) (Alternate Route)

 * Garchomp
 * Lunatone
 * Umbreon
 * Azumarill
 * Blissey
 * Gardevoir
 * Metang
 * Chansey
 * Crobat
 * Delcatty
 * Marill
 * Wigglytuff
 * Clefable
 * Mandibuzz
 * Golbat
 * Gabite
 * Granbull
 * Beldum (30F+, Dawn/Day)
 * Purple Kecleon (21-30F, Dusk/Night)

Boss
After floor 40, there is a Miniboss. It is a reference to Team Charm from Pokémon Mystery Dungeon: Explorers of Time/Darkness/Sky (Medicham, Gardevoir, and Lopunny), with an additional Wobbuffet. They tell the player that they are not beautiful enough to have the stones and that they are a threat to them. Wobbuffet always drops a Big Mushroom. Medicham, Gardevoir and Lopunny all have a chance of dropping a Mushroom.

The second boss of Mt. Moon is Deoxys. Deoxys is a Pokémon from space that does not value anything but the resources from the planet, as it leaves Deoxys in wonder. After defeat, Deoxys is shocked about his defeat, and then tells the player that they have not seen the last of Deoxys. After defeating, Deoxys may drop one of these items:
 * Life Orb
 * Tight Belt
 * Deoxys' Heart Slate
 * Exp. All

Items
Money can be found in this dungeon in high quantities. Supplies like Apples, Ethers, and Reviver Seeds can be found in this dungeon. Items of interest like X-Ray Specs, Stardust, Comet Shards and Star Pieces can be found inside the wall.

Mystery Eggs

 * Azurill
 * Cleffa
 * Happiny (31-60F, walls, floors)
 * Igglybuff
 * Minccino (Main path 30-??F, Alt path 25-??F, hidden in wall)
 * Mawile
 * Porygon (31F+, Main and Alt path)
 * Lunatone (45F+, hidden in floor)
 * Snubbull
 * Illumise (45F+)
 * Wynaut

End Box
Items found in Deluxe Boxes at the end of the normal route include:
 * Steel Dust
 * Comet Shard
 * Star Piece
 * TM Hyper Beam
 * Mobile Scarf
 * TM Substitute
 * TM Psychic
 * TM Dazzling Gleam
 * TM Shadow Ball
 * Fairy Dust
 * Oval Stone
 * Eviolite
 * TM Flash Cannon
 * TM Sludge Wave
 * Lunar Ribbon
 * TM Earthquake
 * TM Rock Slide
 * Relic Crown
 * Stardust
 * Clarity Relic
 * Pixie Plate
 * Pixie Band

Items found in Deluxe Boxes at the end of the Alternative route include:
 * Moon Stone
 * TM Dazzling Gleam
 * Star Piece
 * Comet Shard
 * Revival Herb
 * Lunar Ribbon

Secret Room
In the main path, Secret Rooms can appear starting from floor 46. There's 2 Deluxe Boxes that may contain the following:
 * Doom Seed
 * Fairy Dust
 * TM Embargo
 * Steel Dust
 * Max Revive
 * TM Charge Beam
 * Relic Crown
 * Comet Shard

Silk Room
There is a silk room at floor 45. The box inside the sealed chamber has a chance of yielding a Rose Silk for Fairy types.

Dungeon Objective
Mt. Moon is a popular dungeon for many reasons. Deoxys has a chance of dropping rare and useful items; a Tight Belt, Exp. All, or its Heart Slate, which allows it to be summoned if the Heart Slate is combined with a Mystery Part. Mt. Moon is one of the best dungeons for leveling due to Chansey, Level 100 Blissey, and the Houndoom using beat up on the higher floors, making it easy to gain maximum experience every floor. You can make lots of money because of the amount of Poke the items here sell for. The rare recruitable Pokémon Kecleon, Purple Kecleon, and Beldum are found here.

Restrictions

 * 1) There are no restrictions to enter this dungeon. However, to make it through all the way, you will need to keep Rock Smash for the maze after floor 10.

Tips

 * Many Pokémon here use Attract and immobilization moves. A Shed Shell, genderless Pokémon, or Oblivious Pokémon may prove useful.
 * Bring a Mobile Scarf or a Ghost type, and a Pokémon with Frisk. The Items in the walls can be worth a good deal of money.
 * Embargo use is heavy here. You can't use items while under an Embargo, so watch out!
 * From 46F onward, some level 100 Pokémon start to appear. Metagross, Garchomp, Gengar and Blissey are occasionally at Level 100, while Slaking is always at Level 100 but in sleeping state.
 * There is always a Kecleon shop on floor 35 and floor 50.

Trivia

 * Deoxys used to drop an item called the Heart Pendant. When held, it would boost all team members HP by 75. It was removed for being too strong.
 * Enemy Pokémon received a significant level increase in this dungeon.