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Blue Yian Kut-Ku

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Blue Yian Kut-Ku Topics:

Blue Yian Kut-Ku are a Subspecies of Yian Kut-Ku introduced in Monster Hunter G.

MH4-Blue Yian Kut-Ku Render 001


Although they are usually smaller than their pink counterparts, they are stronger and more aggressive. They are covered in an indigo carapace, and blue streaks can be found on its beak and ears.


Like the common species, Blue Yian Kut-Ku can shoot flaming projectiles from its mouth, and is capable of moving and attacking at quick speeds.


Blue Yian Kut-Ku are very cautious and wary creatures that are easily startled by sudden loud noises.


Blue Yian Kut-Ku inhabit temperate forests, swamps, grasslands, and jungles.

Other Non-Subspecies Forms

Hardcore (HC) Blue Yian Kut-Ku

FrontierGen-HC Blue Yian Kut-Ku Render 001

HC Blue Kut-Ku is very odd looking as its chin has grown a considerable size and used as an unusual weapon, It has been seen to lay pitfall traps for hunters making pits with its large chin. It has also gained better flying abilities as it will glide at extreme speeds and jump and hover in place for a moment to kick predators.

Game Appearances

Chronological Appearances
First US / EU Appearance: First JP Appearance: Latest Appearance:
Logo-MHF1 (2006) Logo-MHG (2005) Logo-MHF-G9 (2015)

In-Game Description

Monster Hunter Freedom 2 / Monster Hunter Freedom Unite
MHFU-Yian Kut-Ku Icon A bird-like wyvern with a huge beak and large ears that splay open when it is angered. With its sensitive hearing it dislikes loud noises. It is smaller but faster than other wyverns.
Monster Hunter 4
MH4-Blue Yian Kut-Ku Icon 青い甲殻に身を包んだイャンクックの亜種。 大きな音に弱い。 通常種と比べ身体能力が高く、一度怒るとその能力を発揮するため、イャンクックといえども油断はできない。
Threat Level (危険度): ★★★★
Monster Hunter 4 Ultimate
MH4-Blue Yian Kut-Ku Icon A Yian Kut-Ku variant protected by a blue carapace. They share the same weakness to loud noises that ordinary Yian Kut-Ku have, but when angered, they display significantly greater physical strength.
Threat Level (危険度): ★★★★
Monster Hunter Frontier G
FrontierGen-Blue Yian Kut-Ku Icon (?)
Monster Hunter Online
MHO-Blue Yian Kut-Ku Icon (?)
Threat Level (危険度): !!!

Analysis and Guides

For details on older games this monster has appeared in, see Blue Yian Kut-Ku Guides.

Blue Yian Kut-Ku Analysis for Monster Hunter 4
Cutting Damage
(Click Image to Zoom)
(Coming Soon)
Impact Damage
(Click Image to Zoom)
(Coming Soon)
Shot Damage
(Click Image to Zoom)
(Coming Soon)
Brighter Red means more damage, while Darker Red means lesser damage.

Raw Hitzone Damage Data
Hitzone Cutting Damage Impact Damage Shot Damage
Head 50 80 100
Neck 50 60 50
Back 40 50 40
Belly 80 70 80
Wings 75 70 70
Legs 25 30 30
Tail 50 60 30
Element Hitzone Damage Data
Hitzone Fire Fire Water Water Thunder Thunder Ice Ice Dragon Dragon
Head 10 30 30 40 0
Neck 10 80 50 50 20
Back 10 20 15 15 0
Belly 10 20 15 15 0
Wings 10 10 25 15 0
Legs 5 5 5 5 0
Tail 10 20 15 15 0
This Monster is weakest to: Status Effect-Waterblight MH4 Icon Water on Neck:
  • On Belly (Cutting Damage)
  • On Head (Impact and Shot Damage)

Status Effects Data
Poison Paralysis Sleep Stun Fatigue Blast Mount
Initial Tolerance N/A N/A
Max Tolerance N/A N/A
Tolerance Increase N/A N/A N/A N/A N/A N/A N/A
Duration N/A N/A N/A
Damage N/A N/A N/A N/A N/A N/A
Item Effectiveness Data
Item Name Able
Normal Enraged Fatigued
Pitfall Trap Yes N/A N/A (?)
Shock Trap Yes N/A N/A (?)
Flash Bomb Yes N/A N/A (?)
  • Flash Bombs will only work if Blue Yian Kut-Ku is facing the Flash Bomb when it goes off.
Sonic Bomb Yes N/A N/A (?)
  • Sonic Bomb works only if Blue Yian Kut-Ku is not enraged.
Meat No N/A

Analysis Data Source/s:

MH4U Breakable Parts

Head (x1)
MH4U-Blue Yian Kut-Ku Head Break 001Indent08MH4U-Blue Yian Kut-Ku Head Break 002


  • Blue Kut-Ku can fly to Area 10 in Forest and Hills to drink water. This is a rare sight.

  • Blue Yian Kut-Ku only appears in rare Expeditions and in the 7* Caravan quest "Singin' the Blues".
  • It will feed on Konchu to regain stamina.
  • It is able to perform a beak slam.
  • In G-Rank, Blue Yian Kut-Ku gains some new moves:
    • Much like G-Rank regular Yian Kut-Ku, it can dig up Konchus and toss them at the hunter.
    • It can perform a series of aerial kicks and a glide attack.
    • It is able to chain its beak slams.

  • Blue Yian Kut-Ku can be a pet, its favorite foods are insects and worms.

  • This monster is unlocked at Level 25.
  • Blue Yian Kut-Ku's ears can be broken twice.
  • Blue Yian Kut-Ku's ears will fold back when affected by a Sonic Bomb and are not used as a weakness sign.

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