Krocodile Kore

Krocodile Kore is a large volcano with an entrance shaped like a Kremling head. It appears in the centered crater lake of the Lost World in Donkey Kong Country 2: Diddy's Kong Quest and Donkey Kong Land 2.

Krocodile Kore's interior appears to be a shrine, featuring artifacts such as ancient statues and weaponry. Krocodile Kore is the power source of Crocodile Isle, which is caused by a geyser of pink and blue energy emitting out of its volcano crater.

The Krocodile Kore head is originally closed, but its mouth opens after Diddy and Dixie Kong complete every level of the game. This allows the Kongs to enter the location where they have their second and final battle against Kaptain K. Rool.

Donkey Kong Country 2: Diddy's Kong Quest
When the Kongs enter the location, Kaptain K. Rool's battle theme from K. Rool Duel plays, which signifies a rematch against him. Diddy and Dixie are shocked to find him in the location. Kaptain K. Rool is drenched from his landing in his swamp, and he shakes off some seaweed and empties fish from his blunderbuss.

The battle is significantly different from K. Rool's first match in The Flying Krock. In Krocodile Kore, Kaptain K. Rool fires a very long onslaught of spiked Kannonballs and energy projectiles, all of which the Kongs must dodge. The last object that K. Rool fires out is a Barrel, which contains a Kannonball. Like the previous battle, K. Rool attempts to vacuum the Kongs toward him via his blunderbuss. The Kongs must pick up the Kannonball and toss it in his blunderbuss, which he then fires out rapidly. K. Rool is only defeated from a single hit in this battle.

Upon firing out the Kannonball, Kaptain K. Rool's blunderbuss explodes, hurling him into the air. K. Rool lands on the power source, where he gets stuck. He blocks the energy flow, which starts an earthquake. The power source explodes, and the entirety of Crocodile Isle is destroyed. The Kongs and K. Rool manage to escape as the Isle sinks underwater.

Donkey Kong Land 2
Krocodile Kore returns as the final confrontation with Kaptain K. Rool in Donkey Kong Land 2. Unlike its previous appearance, Krocodile Kore takes place inside a generic volcanic region, reminiscent to the lava stages of Krem Cauldron. The battle retains its similarities except that K. Rool only fires out regular and spiked Kannonballs, sometimes both simultaneously. After the onslaught, K. Rool launches out a Barrel with the Kannonball. The active Kong must get the Kannonball and throw it into K. Rool's blunderbuss. K. Rool is only defeated from a single hit, and the Kongs are rewarded with a DK Coin.

Although Krocodile Kore's power source is unseen, Crocodile Isle is destroyed and sinks underwater because the power source is broken after the battle ends.

Trivia

 * According to a drawing by Gregg Mayles, Klubba was planned as the final boss, in an encounter similar to Kudgel. Kaptain K. Rool eventually became the boss of Krocodile Kore. The events that transpire after defeating the boss of Krocodile Kore were kept—the villain flies into the power supply, the area crumbles, and the Kongs retreat away from the island.