King Galaxian is a large, crab-like spaceship. He has two metallic pincer claws and a mandible from which he shoots his tractor beam. His weak points are four bulbous red eyes which Pac-Man must shoot until they blacken and eventually explode.
King Galaxian's level starts with Pac-Man on a small platform with a Space Board floating off of the edge above an abyss of space. When Pac-Man jumps on, he instantly starts moving forward. He encounters some of the lesser, blue and purple Galaxian ships. He'll eventually encounter orange and green Galaxian ships that are supposedly stronger. Finally, there are the highest Galaxian ships that can create a rainbow colored force field to protect them. These all shoot glowing, star-like projectiles.
Pac-Man will have to go through a huge cluster of asteroids to get to the halfway point, where there is a check-point. Eventually, Pac-Man comes to a huge ship, and begins gliding across it, still while fighting Galaxian ships. When he gets to the other end of the huge space ship, it breaks off to reveal King Galaxian.
To defeat King Galaxian, Pac-Man must shoot out all four of his eyes. The player can tell when he's close to shooting one out, when the eye darkens from red to black. After Pac-Man shoots out one eye, the King backs up, out of the player's shooting range. He then sends out more Galaxian ships, while shooting out yellow stars of energy. After finishing off the grunts, King Galaxian resumes his original position, and this repeats itself once more. (Note that during the first two rounds, King Galaxian's only means of attack when he's alone is his vortex, which can suck Pac-Man into his mouth, and deal two points of damage.) After dealing with more Galaxian grunts, the King moves up again. Now, however, he will shoot at Pac-Man with yellow energy. After another eye, more grunts will come out, this time with rainbow shields. Then, just one more eye, and it's finished. King Galaxian then turns bright red, and explodes.