Crocodile Isle (Donkey Kong 64)
From the Super Mario Wiki
Crocodile Isle (also referred to as Crocodile Rock, K. Rool's Mobile Island Fortress, and K. Rool Island) is a massive naval fortress modeled after King K. Rool, who uses it as his base of operations in Donkey Kong 64.
According to the German Donkey Kong 64 website, Crocodile Isle was designed and constructed by Snide. The ship is gray and green and is made up of metal. It has iron patches, a bronze head, red eyes, a golden crown, wooden bridge, gray floors, pipes, five doors and red propellers. Crocodile Isle has an engine allowing it to move through the sea by using the ships' two screws. K. Lumsy's Prison is connected to Crocodile Isle through a cable. The base of Crocodile Isle is mainly operated and serviced by Kritters, although in some cutscenes they are shown to have little knowledge about the machinery and rely mostly on force to keep its base operational. A large laser cannon named the Blast-o-Matic is installed in the center of the ship. The fragile machine is also maintained by Kritters. King K. Rool resides in a chamber resembling a throne room. The final level, Hideout Helm, takes place inside Crocodile Isle, and the Kongs can explore areas such as the ship control room and the throne room.
Donkey Kong 64
During the events of Donkey Kong 64, King K. Rool orders his servants to move the ship to DK Isles. He attempts to use the Blast-o-Matic to destroy Kong Isle, thereby taking revenge on Donkey Kong and his friends. Unbeknownst to K. Rool, an argument starts between the two Kritters in charge of the steering wheel, as they cannot decide whether to move the ship to the right or to the left. The purple Klaptrap who controls the steering wheel gets distracted by the argument, and the ship crashes against a solid rock, causing the Blast-o-Matic to break. K. Rool, angry about the delay of his plans, tells his guards to steal Donkey Kong's Banana Hoard and to capture his friends to keep Donkey Kong distracted, while the Kremlings are fixing the broken laser cannon.
During the game, the player can a few levels each from a different part of Crocodile Isle, including K. Lumsy's Prison. The last level, Hideout Helm, is located at the top of the Kremling base. The Kongs come here to shut down the Blast-o-Matic and battle K. Rool, though at the last second, K. Rool flees in his King Kruiser II.
The Game Over sequence shows K. Rool aiming the operational Blast-o-Matic out from Crocodile Isle and pointing at Kong Isle. The sequence ends right before it allegedly fires at Kong Isle.
Super Smash Bros. Ultimate
Crocodile Isle reappears in Super Smash Bros. Ultimate as part of King K. Rool's Final Smash, in which he fires the Blast-o-Matic at Donkey Kong Island. The island has been redesigned, now being a natural island instead of a naval fortress; the top is now shiny and golden, while the body of it has been simplified.