Secret Key (Sinnoh)

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Secret Key
Secret Key
Bag Secret Key IV Sprite.pngBag Secret Key BDSP Sprite.png
Secret Key
Artwork from Platinum
Introduced in Generation IV
Generation IV Bag Key Items HGSS pocket icon.png Key items (PtHGSS)
Generation V Bag Key Items HGSS pocket icon.png Key items
Generation VI Bag Key Items HGSS pocket icon.png Key items
Generation VII Bag Key Items HGSS pocket icon.png Key items
Generation VIII Bag Key Items HGSS pocket icon.png Key items (BDSP)

The Secret Key (Japanese: ひみつのカギ Secret Key) is an Key Item. It is shaped like Rotom's head, with the outline of its eyes and mouth visible under the coat of Rotom-orange plastic. The key's teeth look like the prongs of an electrical plug.

In Pokémon Platinum, it was the first of four event items in the Sinnoh-based games, being followed by the Member Card, Oak's Letter, and Azure Flute. In Pokémon Brilliant Diamond and Shining Pearl, the player will automatically obtain the Secret Key upon catching Rotom.

In the core series games


Games Cost Sell price


The Secret Key opens up Rotom's Room at the Team Galactic Eterna Building in Eterna City after it has been cleared. It contains five appliances necessary for Rotom to change between its six forms. Rowan comes in when the player changes Rotom's form for the first time, explaining its history.


Games Description
A high-tech key that has to be used at a specific location. It emits a special electric signal to open a door.
A high-tech key that has to be used at a specific location. It emits a special electronic signal to open a door.


Games Method
BDSP Old Chateau (automatically obtained after catching Rotom, after obtaining the National Pokédex)


Players could obtain the Secret Key via Nintendo Wi-Fi Connection or from selected stores in certain countries. Japanese players could then share them to five other players of Platinum.

Game version Duration
Wi-Fi Specific locations
Japanese Sept. 28 to Nov. 4, 2008 Unknown
Jan. 16 to Mar. 2, 2009 Unknown
North American April 20 to May 12, 2009 April 19 to 26, 2009
PAL June 8 to July 19, 2009 June 25 to July 19, 2009 *
August 8 to 9, 2009 *
Korean July 6 to August 31, 2009 July 4 to 5, 2009
July 24 to 26, 2009

Wonder Card
*ふしぎなカード 479MS3.png
ひみつのカギ プレゼント
くわしくは ポケットモンスタ-オフィシャ
ルサイトで かくにんできるよ!

North American
Wonder Card 479MS3.png
Unlock the Secret!
For more info on how to use the Secret
Key, visit
Be sure to save your game after you
pick up the Secret Key at a Poké Mart.

PAL English
Wonder Card 479MS3.png
The Secret Key!
Discover the secrets of ROTOM!
Eterna City may unlock the mystery!
Be sure to save your game after you
pick up the Secret Key at a Poké Mart.

Wonder Card 479MS3.png
¡La Llave Secreta!
¡Descubre los secretos de ROTOM!
¡La clave para desentrañar el misterio
puede ser Ciudad Vetusta! Asegúrate de guardar la partida cuando recojas
la Llave Secreta en la Tienda Pokémon.

Wonder Card 479MS3.png
Ecco la Chiave Segreta!
Scopri i segreti di ROTOM! Evopoli
potrebbe svelare l'arcano! Ricorda di
salvare il gioco dopo aver ritirato la
Chiave Segreta in un Pokémon-Market.

Wonder Card 479MS3.png
Der ?-Öffner wartet auf dich!
Entdecke ROTOMs Geheimnis!
In Ewigenau knackst du das Rätsel!
Vergiss nicht, deinen Spielstand zu
sichern, nachdem du den ?-Öffner im
Pokémon-Supermarkt abgeholt hast.

Wonder Card 479MS3.png
La Clé Secrète!
Percez les secrets de MOTISMA! Et si
la solution se trouvait à Vestigion?
Allez tout d'abord récupérer la Clé
Secrète dans une Boutique Pokémon,
puis n'oubliez pas de sauvegarder.

Wonder Card 479MS3.png
비밀의열쇠 선물
이 열쇠를 사용할 곳 등 자세한
내용은 포켓몬 공식 사이트에서
확인할 수 있습니다!

In the manga

The Secret Key in Pokémon Adventures

Pokémon Adventures

Platinum arc

The Secret Key was featured in Unplugging Rotom (Heat, Wash, Mow, Fan, Frost), where it was found by Diamond at the Old Chateau after his and Pearl's second encounter with Rotom. As the word "Eterna" was written into the key, they deduced that it must fit into something found in Eterna City. Following Rotom into the Team Galactic Eterna Building, they soon found a room labeled "Secret Room", and used the key to unlock its door, revealing that the room contained all of Rotom's electric appliances, giving it access to all of its forms.


In other languages

Language Title
Chinese Cantonese 秘密鑰匙 Beimaht Yeuhksìh
Mandarin 秘密鑰匙 / 秘密钥匙 Mìmì Yàoshi
France Flag.png French Clé Secrète
Germany Flag.png German Geheimschlüssel*
Italy Flag.png Italian Chiave segreta*
Chiave Segreta*
South Korea Flag.png Korean 비밀의열쇠 Bimirui Yeolsoe
Spain Flag.png Spanish Llave Secreta*
Ll. Secreta*
Vietnam Flag.png Vietnamese Chìa khóa bí mật

See also

Bulbanews has an article related to this subject:

Project ItemDex logo.png This item article is part of Project ItemDex, a Bulbapedia project that aims to write comprehensive articles on all items.