“

Now the heroes who raided our hideout are as good as dead!

”

— Building Booper[1]

Building Booper (ビルブッパ, Birubuppa; Viz: Building Blaster) was a Demon-level Mysterious Being and a member of the Monster Association. He was killed by Saitama.

Appearance

Building Booper was a lean detonator with arms, legs, a long electric cable as a tail, and a predatory face with one eye. The bottom of his detonator body is striped in black.

Personality

Building Booper appeared to be a sadistic monster. He destroyed buildings around him to block the escape route of the heroes who had raided the Monster Association Headquarters, stating that they would die to Orochi's tentacles.

Plot

Human Monster Saga

Monster Association Arc

Building Booper is seen in Z-City blocking the heroes' escape and supply routes on the surface by causing several buildings around the routes to collapse with explosives.^[2] He presumably dies when the combined strength of Saitama, Waganma, Child Emperor and Underdog Man push the exit manhole below the two collapsed buildings, where he is standing, sending all him and the buildings flying in the air and eventually falling to the ground which seems to result in his death.^[3]

Abilities and Powers

As a Demon-level Mysterious Being, Building Booper was likely a fairly powerful monster.

Fighting Style

Mass Explosion: Building Booper blows up buildings, causing massive destruction, using his body as a detonator.

References

Site Navigation

v • eMonster Association
Leaders	Orochi † • Psykos/Gyoro Gyoro †
Executives	Black Sperm ‡ • Elder Centipede † • Evil Natural Water † • Fuhrer Ugly † • Gouketsu † • Gums † • Homeless Emperor † • Nyan ‡ • Overgrown Rover ‡
Dragon	Bakuzan † • Gale Wind ‡ • Golden Sperm † • Hellfire Flame ‡ • Phoenix Man ‡
Demon	Awakened Cockroach † • Baquma † • Bug God † • Building Booper † • Devil Long Hair * • Do-S * • Eyesight † • Face Ripper † • Fist Fight Djinn † • Free Hugger † • G5 † • Hundred-Eyes Octopus † • Rafflesidon † • Rhino Wrestler † • Royal Ripper † • Senior Centipede † • Showerhead † • Super Mouse † • The Great Food Tub † • The Three Crows † • Unihorn † • Vampire (Pureblood) †
Tiger	Destrochloridium † • Electric Catfish Man * • Maiko Plasma * • Marshall Gorilla * • Master Joe † • Sludge Jellyfish †
Unknown	Benpatsu * • Choze † • Evil Eggs † • Evil Eye † • Gale ≠ • Goddess Glasses ≠ • Gyoffrey † • Hamukichi * • Haragiri † • Hellfire ≠ • Junior Centipede † • Mad Doctor Fish † • Manako ‡ • Platinum Sperm † • Raptora * • Reptera * • Rosie † • Sword Devil Executioner † • The Three Tempest Brothers † • Venus Mantrap † • Volten *

v • eMysterious Beings
Dragon (or higher)	Boros † • Byakko † • Genbu † • Orochi †
Dragon	Aggregation † • Bakuzan † • Black Sperm • Carnage Kabuto † • Eel Dragon † • Elder Centipede † • Energiser † • Forest King † • Fuhrer Ugly † • Gale Wind • Geryuganshoop † • Gouketsu † • Groribas † • Golden Sperm † • Gums † • Gyoro Gyoro † • Heavy Smoker † • Hellfire Flame • Homeless Emperor † • Kenzan Rat † • Marugori † • Melzargard † • Nyan * • Overgrown Rover • Pesky Clown † • Pluton † • Psykos • The Extended Family of Darkness † • Vaccine Man †
Demon	170,000-Year-Old Cicada Larva † • 170,000-Year-Old Cicada Adult † • Armored Gorilla • Awakened Cockroach † • Baquma † • Beast King † • Bruinado † • Bug God † • Building Booper † • Deep Sea King † • Demonic Fan † • Devil Long Hair * • Do-S * • Emperor Giant Anteater † • Explosive Velocity Snail † • Eyesight † • Face Ripper † • Fist Fight Djinn † • Free Hugger † • G4 † • G5 † • Game-Berus † • Giant Crow † • Giant Snowman † • Grizzly Nyah † • Hundred-Eyes Octopus † • Internet Surfers † • Jumping Spider † • Lord of Mountains † • Macho Radish † • Meat Dumpling • Mosquito Girl • Rafflesidon † • Rhino Wrestler † • Royal Ripper † • Scaledon † • Senior Centipede † • Showerhead † • Sky King † • Subterranean King † • Super Mouse † • Surprise-Attack Plum † • The Great Food Tub † • The Three Crows † • Twin-Headed Tsuchinoko † • Unihorn † • Vampire (Pureblood) †
Tiger	Black Roast † • Crablante † • Delorean † • Destrochloridium † • Electric Catfish Man * • Fighting Bull-Frog † • Forest Folk † • Great Giant Anteater † • Kombu Infinity • Maiko Plasma * • Marshall Gorilla * • Master Joe † • Man-Eating Capybara • Octopus Claw Man † • Personification Of A Light Pull Cord † • Sewage Crocodile † • Sludge Jellyfish † • Three-Eyed Ghost † • Triple Tongues † • Urn Eel † • Withered Sprout †
Wolf	Beer Bellee • Himawari † • Hotdog † • Messenger of the Seafolk † • Piggy Bancon † • Shiverhuahua † • Tongue Stretcher
Less than Wolf	Monster Chick Man
Unknown	Alien Seer * • Ancient King † • Angry Grandpa † • Autumn Phantom Red Golden-ringed Dragonfly * • Benpatsu * • Choze † • Cruel Dragon † • Dark • Dark Matter Gunner † • Dirt Earthworm † • Eagle † • Empty Void • Enamel † • Evil Eggs † • Evil Eye † • Evil Natural Water † • Falcon † • Fish of Darkness • Frog Man † • Gale ≠ • Giant Salamander † • Gigakigan † • God • Goddess Glasses ≠ • Ground Dragon † • Gyoffrey † • Hamukichi * • Haragiri † • Hawk † • Hellfire ≠ • Junior Centipede † • Kamakyuri † • Kirin † • Kite † • Lord Great White † • Mad Doctor Fish † • Manako • Men's Esthetician Man * • Platinum Sperm † • Rosie † • Raptora * • Reptera * • Rangor † • Research Hybrid Monster † • Sage Centipede † • Sea Slug • Slugerous † • Snake-type monster † • Super Custom YO649Z Mk. II † • Suppon † • Sword Devil Executioner † • The Mad Cyborg • The Three Tempest Brothers • TV Junkyard Monster † • Unnamed Warrior of the dragon alliance * • Venus Mantrap † • Volten *