Monoblos are large wyverns with a brown, rock-hard texture to their carapace, and very closely resemble Diablos. Unlike Diablos however, a Monoblos's head is akin to Ceratopsian's dinosaurs, namely a Styracosaurus, featuring a beaked mouth, a long, spiral, and pointed nasal horn, giving it a drill-esque look, and a large frill on the back its head, which, when enraged, gains several red markings. Additionally, it is adorned with spikes of various sizes. Monoblos has a pair of small yellow eyes with vertically slit pupils. Its back also features a frill-like carapace. The tail club is more like a mace compared to a Diablos's, lined with four spikes on each side, and a single one at the end.
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, Old Desert, and Dunes regions. They have also been seen inhabiting the arid areas of the Everwood.
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.
Monster Hunter Freedom 2 / Monster Hunter Freedom Unite
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
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. 砂漠に生息する巨大な角をもつ飛竜。巨大な角から繰り出す攻撃は非常に強力で、その雄叫びは耳をつんざく。古くから英雄の象徴とされており、モノブロスを１人で狩猟することは、ハンターを生業とする者達にとって、大きな意味を持つ。
Threat Level (危険度): ★★★★★
Monster Hunter Stories
Endowed with an impressive cranial horn. It uses its horn in brutal attacks, screeching ear-splitting war cries.
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' roar requires HG Earplugs to block.
Monoblos and its subspecies are exclusively encountered in singleplayer settings.
The Old Desert's music theme "真紅の角 (Crimson Horn)" is made for Monoblos.
Monster Hunter 1
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.
Monster Hunter Freedom 2
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.
Monster Hunter 4 Ultimate
Monoblos's back can be broken.
Monoblos can do a forward double horn thrust, which are aimed.
It can recover Stamina by eating cacti, confirming that Monoblos is a herbivore.
Monster Hunter Frontier
HC Monoblos' roar requires Super HG Earplugs to block.
Monster Hunter Online
This monster is unlocked at Level 48.
Monoblos's horn can be broken, and its tail can be severed.