King Kut Out is the seventh (and penultimate) boss of Donkey Kong 64. He is fought by all five Kongs starting with Lanky Kong in Creepy Castle, the seventh level of the game.
King Kut Out is a cardboard version of King K. Rool created and operated by two Kremlings in a futile effort to trick the Kongs. He is comprised of four parts: head, torso, left arm, and right arm. His high-pitched voice and ability to fire lasers make this piece of cardboard quite unique.
The two Kremlings who kept the seventh Boss Key had no one to guard it, so they quickly made a cardboard cutout of K. Rool. When the Kongs enter the castle arena, they see King Kut Out appear on one of the four sides of the arena, and the battle begins. After defeating him, the Kremlings run away in fear and the key slowly drops into the center of the arena.
King Kut Out will pop up at each of the four sides of the arena, alternating after each time. When he pops up and does not fire lasers, the Kong must enter the cannon facing King Kut Out and launch themselves at it, damaging the boss. If they enter the cannon too early or too late, or else enter the wrong cannon, and subsequently miss King Kut Out, they will fly beyond the castle walls, out of the battle, and the next Kong will drop out of the Tag Barrel in the middle of the arena to take their place. If all 5 Kongs are lost, the battle will need to be restarted. Hitting King Kut Out three times will knock off his right arm, hitting him six times will knock off his left arm, and hitting him nine times will knock off his head.
King Kut Out is defeated once the Kongs hit him nine times.
- Laser: King Kut Out pops up and fires lasers at the Kongs.
- Kut Out Illusion: King Kut Out pops up on two opposite sides of the arena; one is a shadow, and if a Kong fires at it instead, they will be lost.
- Lightning Kut Out: King Kut Out pops up at a side of the arena for less than a second before falling back down and then popping up elsewhere.