Why are all you people so obsessed with 99-floor dungeons? XO
Here are mine:
Arctic Darklands / Deep Arctic Darklands
Number of floors: 25 + Relay Point + 17 + 1. You may only be rescued 4 times. You may not be rescued in the Deep A.D. You may only bring items up to the 4th page. You are limited to bringing in 4000 Poke.
Pokemon that appear there, randomly generated:
Arctic Darklands: Duskull, Venomoth, Glaceon, Fearow, Mismagius, Honchkrow, Poliwhirl, Victreebel, Marowak, Kingdra, Eevee, Porygon, Porygon2, Sneasel, Mawile, Lairon, Manectric, Sharpedo, Wailord, Flygon, Altaria, Armaldo, Cradily, Relicanth, Floatzel, Cherrim, Drifloon, Chatot, Toxicroak, Skorupi.
Deep Arctic Darklands: Umbreon, Glaceon, Froslass, Ninetales, Gabite, Scyther, Scizor, Lapras, Jolteon, Porygon2, Porygon-Z, Kabutops, Aerodactyl, Quilava, Mudkip, Treecko, Ampharos, Crobat, Weavile, Skarmory, Houndoom, Tyranitar, Mightyena, Swellow, Gardevoir, Gallade, Salamence, Zangoose, Milotic, Castform, Huntail, Metagross, Starraptor, Luxray, Vespiquen, Garchomp, Spiritomb, Chimecho.
( Notice Vespiquen, Spiritomb, Weavile, and Absol. Yup, I've got it in for your PP! )
If you are holding the Secret Slab or Mystery Part, Shaymin will appear on the 25F of Arctic Darklands. If you are holding both, Shaymin will still appear, but in addition, Arceus will appear in Deep Arctic Darkland 17F.
Unlock Criteria: Clear Temporal Tower four times after earning Secret Rank, then enter a Wonder Mail password. The job describes the Arctic Darklands as a place "where the memory is unfolded". ( ? )
Special Terrain: Arctic Darklands: water, Deep Arctic Darklands: air
Boss: At the end of the dungeon, there is one special room, where you fight a group of nine Skarmory and nine Tyranitar, led by a Rotom in Time and a Lucario in Darkness. They are at Lv60 with 1500 HP, excluding the Lucario/Rotom, which is at Lv75 with 2500 HP.
After defeating them, an Absol appears and escorts you to a final room, where you see a strange, fleeting illusion of Grovyle and shiny Celebi that then disappears. If you have recruited Arceus, the Absol will then join your team. It is at Lv100 with maxed stats. Yes, I am biased. It is male in Time and female in Darkness.
Another one. This one is purely for crack.
Forbidden Wetlands
Number of floors: 25. You may not bring in money. You may not recruit any Pokemon. Cresselia is not allowed the first time you enter. ( You'll see why. )
Pokemon that appear there:
1F - 15F: Mudkips the size of Wailords
10F - 20F: Marshtomps the size of Wailords
18F - 25F: Swamperts the size of Wailords
All are female.
Unlock Criteria: Clear Lake Afar and the Marine Resort, then take on sentry duty. These must be done right after one another, or else it will not work. The day after sentry duty, a giant Mudkip will come to Treasure Town. The residents are terrified of her. If you talk to her, she will ask you to go to the Forbidden Wetlands and discover what went wrong with their Queen. Accept, and she will leave Treasure Town, and the Forbidden Wetlands will open.
Special Terrain: Water, all floors
Boss: When you reach the end, you will meet a gigantic Swampert Queen who insists on giving you a hug. However, Cresselia intervenes and cures the Queen of her strange Hugging Disease. The grateful Queen then allows you to use her Wetlands as a training ground, battling her oversized subjects. Every time afterwards that you clear the dungeon and visit her, she gives you a Reviver Seed.
If you read the entire thing with no skips, have a virtual cookie.