Robot Kremling Head
In DK: Jungle Climber, the Robot Kremling Head appears as the boss of Lost Island, in Toybox; King K. Rool has one of his Kritter henchmen, empowered by a Crystal Banana, merge with several toys from the level and do battle with Donkey Kong.
In order to damage the Robot Kremling Head, Donkey Kong, while avoiding the two rotating crystal spikes around the boss, has to strategically hit the Robot Kremling Head in a place where the crystal spikes are not present. Doing this turns the Robot Kremling Head red, and both spikes stop rotating. It then starts to home in on Donkey Kong, and if Donkey Kong stays still for a long time, it falls down on him. If Donkey Kong avoids the attack, the toys fall off of the powered Kritter, leaving it vulnerable. If Donkey Kong hits it, the face reforms and reverts to its original green color
The next phase involves waves of four missiles, which protrude from the Lizard-Head. Once the boss is hit again, it turns red, and the downwards-crystal spike phase happens again. If it is hit again, it reverts back to a faster version of the missile attack. Once the face is hit again and Donkey Kong hits the Kremling a third time, the face once again turns red and sends out two red flashing boomerangs. It then reverts to the crystal-spike phase one last time. One last hit causes the defeat of the Robot Kremling Head and enables Donkey Kong to collect the second Crystal Banana.