King Boom Boo



King Boom Boo is a boss character in the game Sonic Adventure 2. He is a giant ghost, and the leader of the ghosts in the Death Chamber level (yet there are the same red-eyed ghosts in Pumpkin Hill level and Aquatic Mine level), and like other ghosts in the Sonic universe he is repelled by light.

Knuckles encounters King Boom Boo while searching for keys to a door Sonic and the others were trying to get through. In the boss battle, Knuckles runs around a circular arena while followed by King Boom Boo who throws blue fireballs at him (and may also attempt to bite him at close range). Occasionally the ghost stops to spew a huge blue wave of flames, and during that time Knuckles must stun King Boom Boo by activating an hourglass which opens panels in the ceiling, making light fill the room. After that you must chase his shadow across the room and dig it up, then run after him and punch him. He can be damaged up to three times in one hourglass flip. If you go too fast when running from him, he will come the other way round. King Boom Boo has not appeared in any game since Sonic Adventure 2. This is because he was destroyed after his defeat because of too much exposure to sunlight.

Sonic X
In Sonic X, King Boom Boo appears in an episode before the Sonic Adventure 2 adaptation. He haunts an ancient castle along with the smaller Boom Boos, but is trapped in it forever by Sonic and his friends.

In this continuity he is capable of coherent speech (whereas he could only babble, grunt, and roar "BRAAAA!" in SA2). He can manipulate the sound of his voice, for example he imitated Sonic in order to trick Amy to set the hourglass moon side up.

Sonic X (comic series)
In Issue 14 King Boom Boo makes an appearance. After the incident at the castle in the Sonic X anime, the hour glass stone was take from the castle to one of Lindsay Thorndyke's summer homes. Combined with being rustled from his rest by the endless activity of a recently built nearby Tennis Court, King Boom Boo's loyal horde of ghosts possessed everyone on the island, including Cheese, Lindsay, and Vanilla. King Boom Boo claims that once his ghosts possess enough living people he'll be able to enter the world of the living for real. Cream and Chris manage to reason with King Boom Boo that his time on Earth is over and the ghost king concedes to retract his presence and his ghosts to release their hosts, but extracts the promise of the stone hour glass being return to it's proper place by dawn while Lindsay plans to convert the tennis court into a garden to further insure King Boom Boo's continued endless dreamless sleep.

Sonic Rivals 2
King Boom Boo appears as a collectable card in Sonic Rivals 2 by winning the Tails Cup in Single Player. The card unlocks Tails' Captain suit.

Trivia

 * King Boom Boo was suggested as a new character for Archie comic issues following #134, but the plot line in which he was to have featured appears to have been cut.
 * King Boom Boo is the only boss in Sonic Adventure 2 to have green text appear on-screen before facing him.
 * Altough it's never shown, it's arguable that Knuckles is afraid of King Boom Boo as when he sees him he says "Huh... a ghost?!", also in an unused line, Knuckles says "What?! A ghost!" in a more frightened tone. And in the Japanese version, Knuckles says "O-Obake!", meaning "G-Ghost!" and he is clearly scared.
 * King Boom Boo resembles Boos from Nintendo's Mario series. He even has "Boo" in his name.
 * When fighting him, the player can see a picture of a Nintendo regular Boo and a regular Boom Boo on the wall.
 * King Boom Boo actually came before Nintendo's King Boo. King Boo's first appearance was in Luigi's Mansion, which was released the same year as but several months after Sonic Adventure 2.
 * Some people refer to King Boom Boo as "Rainbow Tongue" due to his multicolored tongue.