Crystal Banana

Crystal Bananas are large bananas used by the Xananab in DK: Jungle Climber, where King K. Rool has stolen them in order to take over the world. In the game's boss battles, a Kritter uses one it is carrying to mutate into a large Kremling. After exploring Chill-Char Island, it is revealed that King K. Rool was using them to make his King Kruiser IV invincible.

Boss Fight One
The Kritter makes himself surrounded in toys that make a large robotic Kremling head that first uses knifes to stab the Kongs, Donkey Kong must strike it where the knifes arean't at in order to damage it. Then it'll turn red with two knives at the bottem and will strike, will the knives are stuck in the tires, it is Donkey Kong's chance in order to attack him.