K. Rool's Keep

K. Rool's Keep is the name of Kaptain K. Rool's precariously perched castle in Donkey Kong Country 2: Diddy's Kong Quest and Donkey Kong Land 2. K. Rool's Keep is situated on the very top of Crocodile Isle. Since the castle is so high up, the area around the keep is completely frozen and constantly battered by high winds. The castle itself is filled with traps to impede Diddy and Dixie Kong's progress. Some of these traps include, but are not limited to, a moving floor, a tower filled with acid that slowly rises, and a bottomless pit located in a dungeon filled with chains. Once the Kongs make their way to the top of the keep, the mighty Kerozene is fought (GBA version only), and Kaptain K. Rool flees to his transport gunship, the Flying Krock. At the end of Donkey Kong Country 2, K. Rool's Keep sinks to the bottom of the ocean, along with rest of Crocodile Isle.

Trivia

 * In the original Super Nintendo version of Donkey Kong Country 2, K. Rool's Keep had no boss - instead, Diddy and Dixie find Donkey Kong chained in the last area of K. Rool's Keep, Stronghold Showdown, from where he is taken to The Flying Krock, forcing the Kongs to give chase. The giant Kremling, Kerozene was added in the Game Boy Advance remake.
 * In the remake, Windy Well was pushed to the fourth level, making the previous third and fourth levels the second and third levels respectively.
 * Donkey Kong Island can be seen in the background of the Super Nintendo map of K. Rool's Keep, and the location of Klubba's Kiosk on that map seems to be on said island.
 * In the Game Boy Advance remake, the castle was remodeled to look like a cylindrical medieval tower, in addition to giving the bottom of the castle a floor of ice. Furthermore, there is snow outside at the location of the world's Kong Kollege.