Find Key in Pokemon Mansion - Let's Go Pikachu & Eevee

AntMag.NET

In order to open the door to the Cinnabar Island Gym, you’ll need to go through this dungeon and find the key.

Wild Pokémon

Pokémon	Type	Location	Chance (%)
Ditto	Normal	Interior	1 (1F-3F), 10 (B1F)
Magmar	Fire	Interior	14 (1F-3F), 10 (B1F)
Raticate	Normal	Interior	20
Rattata	Normal	Interior	20
Muk	Poison	Interior	5 (1F-3F), 10 (B1F) \Let’s Go [Pikachu\]
Weezing	Poison	Interior	5 (1F-3F), 10 (B1F) \Let’s Go [Eevee\]
Grimer	Poison	Interior	40 (1F-3F), 30 (B1F) \Let’s Go [Pikachu\]
Koffing	Poison	Interior	40 (1F-3F), 30 (B1F) \Let’s Go [Eevee\]
Chansey	Normal	Interior	Rare spawn

Floor 1F (main)

When you enter, there will be stone pillars on either side of a red carpet. Follow the red carpet north. You’ll find a staircase that leads upstairs. Ignore it, so we can continue exploring this floor. Go right, then up towards the northern-most wall. From there, head west. You’ll come across a room with a table and papers all over the place.

Head over to the bottom-left corner and retrieve the Max Repel. Then approach the very conspicious stone statue with glowing red eyes to the left of the table. Inspect the statue to toggle a secret switch. Now head west. Where there are four stone pillars in a row, go south through the doorway opened by the secret switch.

Pick up the Max Elixir in the middle of the carpet. After that, return to the four stone pillars and then continue east. When you reach the north-east corner, head south. You’ll reach the other side of the collapsed room from earlier. Here, check under the table for a Max Lure. Finally, return towards the entrance and go up the staircase.

Floor 2F (main)

Upstairs, there’s another staircase immediately to the right. If you want, you can go up it.

Floor 3F (south-west)

You’ll reach an isolated section of Floor 3F. Up here, there’s a table in the middle of the room, with a diary that you can read. To the south-east of the table is another burglar. Meanwhile, just past him is a Rare Candy on the floor.

Burglar Simon

Pokémon	Level	Type
Magmar	44	Fire
Muk	44	Poison

Simon’s Pokémon are both weak to Ground. His Magmar has various Fire-type moves, plus Confuse Ray. Water and Rock-types are also effective. Meanwhile his Muk can use Sludge and status moves such as Toxic. Psychic-types are also good and you can wall it with Steel-types as well.

Floor 2F (main; again)

Back on Floor 2F, inspect the nearby stone statue to activate a secret switch. After doing so, head south towards a small room. In this room, there’s a suspicious trainer and a Max Ether to his south-west.

Burglar Arnie

Pokémon	Level	Type
Rapidash	44	Fire

Arnie has an evolved Ponyta that–as its name suggests–is pretty fast. This one can use Fire Spin to trap your Pokémon and inflict damage for a couple of turns. Plus Take Down to deal decent damage, and Quick Attack to go first. Rock-types are ideal; Ground and Water are also good.

After that, go back up. South-east from the second staircase is a corridor that leads south. Follow it. At the end, there should be a closed doorway to the right and an open one on the left. That’s if you pressed the secret switch once. Obviously, go through the open doorway. There’s a diary on the table, plus a PP Up on the floor.

Go back around and continue north from the staircase’s right. Towards the left, above a big crack in the floor, should be a closed doorway. Head right from the crack. Soon, there should be a doorway above and a doorway below. Go up first. Here, there’s another diary that you can read, and a Max Revive to the far right.

After that, go through the doorway below. To the right, there’s an Escape Rope near the huge gap in the floor. You probably don’t want to fall through there. Now return to the entrance of this floor. Go to the statue and press the secret switch again. This will return the doorways to their original positions, so you can continue.

Head through the corridor that goes south again. At the end, you should be able to enter the doorway on the right. Keep going and you’ll find 3 Ultra Balls. After that, go through the corridor that goes north. Now the doorway along the left should be open. Through here, there’s another staircase leading up, as well as a Coach Trainer.

Coach Trainer Rita

Pokémon	Level	Type
Graveler	46	Rock/Ground
Dugtrio	46	Ground
Poliwrath	47	Water/Fighting

All of Rita’s Pokémon can use Rock Slide, which can cause flinch. Her Graveler can also use Brick Break to smash barriers. Water and Grass-types are recommended; Ground, Steel and Fighting-types are good choices as well.

Next up, Rita has Dugtrio, which is an evolved Diglett. This three-headed mole can also use Earthquake to deal formidable Ground-type damage, boosted by STAB. Water and Grass-types would be nice to have here.

Finally, her Poliwrath is a fully evolved Poliwag that’s gained the Fighting-type. It’s thus weak to Grass, Electric, Flying, Psychic and Fairy. Besides Rock Slide, it can use STAB Hydro Pump and Submission. Use a Grass-type if possible.

Succeed and you’ll receive–gee, we wonder– TM22 Rock Slide. In addition to having a chance to cause flinch, this Rock-type move can hit both opponents during Double Battles. Imagine the look on your foe’s face when you make both of their Pokémon flinch… In any case, go up the staircase in this room.