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Nightmare Key

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Big Key
ALttP Big Key Artwork.png
LA Nightmare Key Artwork.png
OoT Boss Key Render.png
TWW Big Key Render.png
LANS Nightmare Key Model.png
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OoT3D Boss Key Model.png
MM Boss Key Model.png
MM3D Boss Key Model.png
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Boss Key TP.png
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PH Boss Key Model.png
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ALBW Big Key Model.png
ALttP Big Key Sprite.png
LA Nightmare Key Sprite.png
LADX Nightmare Key Sprite.png
OoT Boss Key Icon.png
OoT3D Boss Key Icon.png
MM Boss Key Icon.png
MM3D Boss Key Icon.png
OoS Boss Key Sprite.png
OoA Boss Key Sprite.png
FSA Big Key Sprite.png
TMC Big Key Sprite.png
TPHD Boss Key Icon.png
BossKey PH Icon.png
BossKey ST Icon.png
Main appearance(s)
Other appearance(s)
Unlocking the boss door
Comparable item(s)

Nightmare Keys,(LA)[1] also known as Big Keys,(ALttP | TWW | TMC | TP | ALBW)[2] Boss Room Keys,(Series)[3] and Boss Keys,(OoT | MM | OoS | OoA | PH | ST | CoH)[2][4][5] are recurring Items in The Legend of Zelda series.

Location and Uses

Big Keys are one of the three standard dungeon items, the other two being the Compass and the Dungeon Map. They are generally harder to find than Small Keys and are used to open the big door leading to the Boss' chamber. Big Keys can sometimes be used for purposes other than entering the Boss Room.

A Link to the Past

In addition to opening doors, Big Keys are also used to open the Treasure Chests containing a dungeon's item in A Link to the Past. Doors unlocked by the Big Key may not necessarily lead directly to the boss.

Link's Awakening

Nightmare Keys open access to a Dungeon's Nightmare in Link's Awakening.

Ocarina of Time

Boss Keys are always found in large Treasure Chests that have yellow and blue designs in Ocarina of Time. This iteration only opens the door to that dungeons Boss.

Majora's Mask

Functionally, the Boss Keys are the exact same as its predecessor, the same chest and all. This iteration has a pattern of the key being found after every second Mini-Boss of each dungeon. The Boss Key does not remain with Link should he travel back in time. Instead, he must relocate the Treasure Chest containing the Key to retrieve it once more. However, Link can directly warp to the boss's chamber one they have collected the remains.

Oracle of Seasons

Boss Keys are found in Dungeons after a puzzle in Oracle of Seasons. They allow entry into Boss Room.

Oracle of Ages

Boss Keys are found in Dungeons after a puzzle in Oracle of Ages. They allow entry into Boss Room.

The Wind Waker

Four Swords Adventures

In this game, Big Keys are optional items that open Big Chests, which contain a large number of Force Gems.

The Minish Cap

Twilight Princess

The Big Key from the Goron Mines must be put together by obtaining the three Key Shards from the Goron Elders in Twilight Princess. In the Snowpeak Ruins, the Big Key is replaced by the Bedroom Key, as said dungeon is actually the mansion residence of Yeto and Yeta.

Phantom Hourglass

Link must carry the Boss Key in his hands rather than in his inventory in Phantom Hourglass, making him unable to attack and vulnerable to attacks.[6]

Spirit Tracks

Link must carry the Boss Key in his hands rather than in his inventory in Spirit Tracks, making him unable to attack and vulnerable to attacks. In some instances, Boss Keys are electrified and Link must have Princess Zelda possess a Phantom in order to carry them for him.

Skyward Sword

A Link Between Worlds

Other Appearances

Hyrule Warriors

Cadence of Hyrule



TMC Forest Minish Artwork.png Names in Other Regions TMC Jabber Nut Sprite.png
JapanJapanese大きなカギ (Ōkina Kagi) (ALttP)[7]Big Key
GermanyGermanGroßer Schlüssel (LANS)Big Key
ItalyItalianGrande chiave (LANS)Big key
This table was generated using translation pages.
To request an addition, please contact a staff member with a reference.


See Also


  1. "You got the Nightmare Key! Now you can open the door to the Nightmare's lair!" — N/A (Link's Awakening for Nintendo Switch)
  2. 2.0 2.1 Encyclopedia (Dark Horse Books) pg. 118 (ALttP | LA | OoT | MM | OoS | OoA | TWW | TMC | TP | PH | ST | ALBW)
  3. Encyclopedia (Dark Horse Books) pg. 118 (Series)
  4. "You got a Boss Key! Get ready for the final battle!" — N/A (Hyrule Warriors: Definitive Edition)
  5. "Boss Key" — N/A (Cadence of Hyrule)
  6. The Legend of Zelda: Phantom Hourglass — Prima Official Game Guide (Prima Games) pg. 14
  7. Nintendo Official Guidebook—The Legend of Zelda: A Link to the Past & Four Swords (Shogakukan) pg. 13