Dark Hyrule Castle

Dark Hyrule Castle was the result of Vaati's power. He changed the original Hyrule Castle, turning its inhabitants into stone and bringing in many of Vaati's fiercest monster minions. This was the final dungeon of The Minish Cap and has no proper reward, although it does let Link obtain the Four Sword.

Its mini-boss was the Black Knight, the strongest of all Darknuts. For some reason, the symbol on the banners of Dark Hyrule Castle bear vague resemblance to the Sheikah Eye Symbol emblem, though it is most likely a reference to Vaati.

Before confronting Vaati, Link must encounter a Ball & Chain Soldier, a group of ten Keatons, and a group composed of two Red Darknut and one Black Knight.

Enemies

 * Ball & Chain Trooper
 * Bob-omb
 * Cannon
 * Darknut
 * Red Darknut
 * Floormaster
 * Flying Pot
 * Ghini
 * Gibdo
 * Keaton
 * Keese
 * Moblin
 * Moldorm
 * Spark
 * Stalfos
 * Trap
 * Wallmaster
 * Winder
 * Wisp
 * Wizzrobe

Trivia

 * Moblins and Keatons appear with different palettes in Dark Hyrule Castle, but although generally in this series this implies a stronger or in some way different enemy, these are functionally identical to their counterparts found elsewhere in the game's world, having the same amount of health, doing the same amount of damage to Link, and exhibiting the same behaviors.