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Pink Fatalis Scan 13
English: Monoblos
Japanese: モノブロス
Chinese: 一角龙
Nicknames: Mono
English: One Horned Wyvern
Japanese: 一角竜
Chinese: 一角龙
General Information
Species: Flying Wyvern
Element/s: N/A
Ailment/s: N/A
Weakest to: Status Effect-Thunderblight MH4 Icon Thunder
Status Effect-Iceblight MH4 Icon Ice
Weakness Sign: Limping
Signature Move: Underground dig attack
Habitats: Desert, Old Desert, Dunes, Everwood, Thunderous Sands
Monster Size: Gold Crown Large 2918.8
Gold Crown Small 1683.5
Monsters in Relation: White Monoblos, Diablos,
Black Diablos, Varusaburosu
Generation: First

Monoblos are large hard-shelled wyverns that have the ability to dig and travel underground. Monoblos were named for the strong, singular horn protruding from their head, which are held as a prize by many hunters, as are their hearts, which are very rare.

MH4U-Monoblos Render 001


They have a brown, rock-hard texture to their shell. There is a subspecies of Monoblos known as the White Monoblos. These are generally larger in size than their sand colored counterparts and seen as more dangerous by hunters. Ironically, whilst their ear splitting roar is the bane of hunters they are weak to Sonic Bombs while digging through the ground and not in Rage Mode.


While they have no breath attack, their roar is considered a lethal weapon itself. They are also very physically capable, able to fight off hunters with horn-thrusts and tail-swings. Being able to tunnel beneath the sands of the Desert also means they can sneak up on any potential threats.


Monoblos are aggressive, and will attack Hunters on sight. When suitably enraged their crown will become inflamed with red streaks. They are quick to anger, and will move faster and hit harder while enraged.


Monoblos have only been spotted in the Desert and Old Desert regions.

Other Non-Subspecies Forms

Hard Core (HC) Monoblos

FrontierGen-HC Monoblos Render 001

In Monster Hunter Frontier 10.0, HC Monoblos was released. Its attack power and speed are increased; its digging attack is much faster; it can perform a ground-slam immediately followed by a powerful horn thrust; and finally, it can perform a tail whip whilst sliding forwards.

HC Monoblos' horn appears longer and its body and tail are more spiky.

Game Appearances

Chronological Appearances
First US / EU Appearance: First JP Appearance: Latest Appearance:
Logo-MH1 (2004) Logo-MH1 (2004) Logo-MH4U (2015)

In-Game Description

Monster Hunter Freedom 2 / Monster Hunter Freedom Unite
MHFU-Monoblos Icon A large-horned wyvern found in desert zones. Their giant horn makes their attacks very dangerous. While they have no breath attack, their ear-splitting roar is the bane of hunters.
Monster Hunter 4 Ultimate
MH4U-Monoblos Icon A monocerous desert-dwelling wyvern able to burrow swiftly through the sand. It puts its horn to lethal use with a charging thrust, and while it possesses no breath attack, its roar is loud enough to split human eardrums.

Threat Level (危険度): ★★★★★
Monster Hunter Frontier G
MHFG-Monoblos Icon (?)
Monster Hunter Online
MHOL-Monoblos Icon 顾名思义,一角龙头部有一只巨大的角,呈现出暗红色。当它发怒时,角会变成鲜红色。因此它也被称为“真红之角”。
Threat Level (危険度): !!!!!


  • Many of Monoblos' attacks are identical or similar to that of the Diablos.
  • Along with the Diablos, Daimyo Hermitaur and Shogun Ceanataur, the Monoblos can destroy a Shock Trap by burrowing up from beneath it.
  • If not in Rage, when they dig underground, a Sonic Bomb can be used to produce an effect similar to "Pit Trapping" for around five seconds.
  • When a 'blos wyvern charges into a wall or ledge, their horn(s) causes them to get stuck in it, after two or three times the horn(s) will break and become an award item at the quest's end. Once its horn(s) has been broken, that individual 'blos will not get stuck in any wall or ledge again. Their tails can also be severed from the body.
  • When a Monoblos is ledged for the first time in the battle, it will yield a 'shiny' item. This can either be 'wyvern tears' or another item of that ilk. However it is possible that the Monoblos may drop a rare 'Monoblos heart'. How the Monoblos's heart is dropped is a mystery.
  • Monoblos are only fought in Village Quests in any MH game they are in (currently generations 1, 2, and 4 only); i.e.: it is impossible to find a Quest featuring a Monoblos in the Guild Hall in any game.
  • Although in Monster Hunter 3 Diablos was confirmed to be a herbivore, it is unknown whether or not Monoblos is a herbivore, carnivore, or quite possibly, omnivore. The idea of it eating plants is, however, supported by its head being shaped like that of a Styracosaurus, a herbivorous dinosaur.
  • The Old Desert's music theme "真紅の角 (Crimson Horn)" is made for Monoblos.

  • It is said that the Kokoto Village Chief slayed a Monoblos with the Hero's Blade.
  • The Monoblos was an urgent quest given near the end of the Village Chief's list.
  • Monoblos is the offline final boss for the original Monster Hunter.

  • Monoblos gains a new attack in High Rank quests: it growls at the hunter, as it does when it first spots them, before charging at twice its normal speed. However, the speed of this attack doesn't increase in rage mode.

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