Sonic News Network

King Boom Boo

8,030pages on
this wiki
King Boom Boo
King Boom Boo
King Boom Boo in Sonic Adventure 2.
First appearance

Sonic Adventure 2

in other media
Physical description







Black irises with red, yellow and green eyes.

Alignment and character traits


  • Sunlight
Skills, abilities and powers
  • Throwing fireballs
  • Fire breathing
  • Speech (Sonic X only)

King Boom Boo (キングブーブ, Kingubūbu) is a boss character in Sonic Adventure 2. He is a giant ghost and the leader of the Boos that reside in every haunted level in the game. He is encountered in Death Chamber by Knuckles the Echidna, yet his presence can be seen at the giant pillars in Pumpkin Hill and in Aquatic Mine, and like other ghosts in the Sonic the Hedgehog series, he is repelled by light.

Game Appearances

Sonic Adventure 2

Knuckles fighting King Boom Boo in Sonic Adventure 2

Knuckles the Echidna encounters King Boom Boo whilst searching for the keys to a door which Sonic the Hedgehog, Miles "Tails" Prower, and Amy Rose are trying to get through. During the boss battle, Knuckles is chased around a circular arena by King Boom Boo, who throws blue fireballs at him and attempts to bite him at close range. Occasionally, the ghost pauses and spews a large blue wave of flames. During this attack, Knuckles must activate an hourglass which opens panels in the ceiling, flooding the room with light and causing King Boom Boo to shrink. His shadow sinks into the floor or the wall, and Knuckles has to dig it up and bring the ghost to the surface. At this point, the player must run after King Boom Boo and punch him before the hourglass runs out, clearing the light from the arena and causing him to grow back to his normal size. He can be damaged up to four times in one hourglass flip. If the player runs too fast, he moves in the opposite direction.

Sonic Rivals 2

King Boom Boo appears as a collectible card in Sonic Rivals 2. It can be unlocked by winning the Tails Cup in Single Player mode. The card unlocks Tails' Captain suit.

Appearances in other media

Sonic X

King boom boo
King Boom Boo's profile card from 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 Boos, but is permanently trapped there by Sonic and his friends.

In the anime, King Boom Boo is shown to be capable of coherent speech (whereas he could only babble, grunt and roar in Sonic Adventure 2). He can manipulate the sound of his voice; for example, he imitated Sonic in order to trick Amy into setting the hourglass moon side up.

Sonic X (comic series)

In Issue 14 of the Sonic X comic series, King Boom Boo makes an appearance. After the incident at the castle in the Sonic X anime, the hourglass stone was stolen from the castle and taken to one of Lindsey Thorndyke's summer homes. This, along with the disturbance from his rest by the endless activity from a recently-built tennis court nearby, is a great annoyance to King Boom Boo. His loyal horde of ghosts consequently possess everyone on the island, including Cheese, Lindsey and Vanilla the Rabbit. King Boom Boo claims that once his ghosts possess enough living people, he'll be able to enter the world of the living for good. Cream the Rabbit and Christopher Thorndyke manage to reason with King Boom Boo that his time on Earth is over. The ghost king concedes to retract his presence and his ghosts release their hosts, but extracts the promise of the stone hourglass being returned to its proper place by dawn. Linsey plans to convert the tennis court into a garden, to further ensure King Boom Boo's continued endless, dreamless sleep.


  • King Boom Boo was suggested as a new character for issues of the Archie Comics following #134, but the plot line in which he was intended to feature 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.
  • Although it's never shown, it's arguable that Knuckles was afraid of King Boom Boo, as when he notices him, he says "What the... a ghost?!", but he only says it with a little shock and disbelief. However, 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 the Boos from Nintendo's Mario series. His name even contains "Boo".
  • When fighting him, the player can see a picture of a Nintendo 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.
  • King Boom Boo and the other ghosts in Death Chamber look similar to Hyudoro in Sandopolis Zone in Sonic & Knuckles. Also, both of them inhabit pyramids.
  • King Boom Boo appears in winning fan art in Sonic and the Black Knight.
  • There is a glitch in the Playstion network port, when the windows on the roof of Boom Boo's arena are opened if the player pauses the game. The sky will change from blue to black. If the player resumes the game, the sky will return to its normal color. However, if the player restarts the game from the pause menu, the sky will stay black for the rest of the fight.


Start a Discussion Discussions about King Boom Boo

  • King boom boo

    15 messages
    • You know what is weird, and I quote "King Boom Boo and the other ghosts in the Death Chamber look similar to Hyudoro in Sandopolis Zone in Soni...
    • Y'know what be cool? If Boo's and Hyudoro can work together. The boo's be the general enemies of a stage which gradually gets darker as Hyudo...
Advertisement | Your ad here

Around Wikia's network

Random Wiki