From Inkipedia, the Splatoon wiki

Horrorboros king.jpg
Horrorboros as it appeared upon its first reveal on Twitter.
Species King Salmonid
Hair color
Eye color
Location Salmon Run Next Wave
That's a Horrorboros. Do I even need to tell you to avoid the bombs that it periodically launches out of its mouth?

Horrorboroses are King Salmonid that appear in Salmon Run Next Wave during an Xtrawave. They are the second type of King Salmonid to debut in Splatoon 3, making its first appearance during the second Big Run event taking place at Inkblot Art Academy on 4 March 2023.


A Horrorboros is a large, dragon-like Salmonid. It has a large mouth with a weapon device similar to that of the Steelhead's bomb. It spawns at the water's edge, slowly rises into the air, and slowly moves around the map, floating in a dragon-like manner. It uses an attack similar to the Booyah Bomb weapon as its main attack (albeit larger), charging it up using the contraption in its mouth and launching it down towards the players. Players can attack Horrorboros' body directly, or attack the bomb from its mouth until it bursts. Its bomb takes 2,500 damage to burst (each damage hurts Horrorboros directly), and the burst damage is 5,000. In other words, each successful burst cycle deals 7,500 damage to Horrorboros. Since each Egg Cannon shot only deals 800 damage to its body, it is advised to aim the shots at its bomb for massive damage.

A Horrorboros' health, like Cohozuna, is linearly correlated to the room's hazard level, using the formula 0.7 * MaxHP + 0.005 * HL(%) * MaxHP, where HL denotes the hazard level percentage (capped at 60) and MaxHP is set at 55,000 for Horrorboros. For example, a team of Apprentice 40/99 (hazard level 8%) will meet a Horrorboros with 40,700 HP. When facing a team of Overachievers 0/99 (hazard level 60%) or above, Horrorboros has the maximum 55,000 HP.[1]


  • In a similar manner to the Steelhead, the bomb Horrorboros charges up can be attacked. The bomb has 2,500 HP, and any damage to the bomb also reduces Horrorboros' health by the same amount. If destroyed, the explosion deals a huge amount of damage (5,000) to Horrorboros and cancels its Booyah Bomb attack.
    • Additionally, try to hit the bomb early before it gets too big. This way it is easier to destroy and can be done much faster.
    • Throwing Golden Eggs at the bomb can deal significant damage (800 each) to the bomb, which is faster than most supplied weapons. If you cannot connect a clear shot with a Golden Egg to the bomb, do not hesitate to throw the Golden Egg at Horrorboros normally, as every second counts.
    • Like Steelhead's bomb, any damage dealt to Horrorboros' bomb carries over to the next cycle (with the bomb painted partially in players' ink color) if players are unable to destroy it in the current cycle, until it is destroyed.
  • Horrorboros' large size and floating nature allow the team to deal damage to it virtually anywhere on the map.
  • It is futile to try and defeat Horroboros without taking advantage of its bomb. Assuming that players only throw their Golden Eggs at Horrorboros itself, without hitting its bomb at all, it would take 69 Golden Eggs to defeat it on the highest difficulty (55,000 HP). Even in lower difficulties like Overachiever where Horrorboros's health is lower, fewer Boss Salmonids will spawn as well, making each individual Golden Egg count even more. If any downtime presents itself, keep the pressure going with main weapons, particularly those with high damage per second. Attacking the bomb is preferable, but any and all damage makes a difference.
    • The S3 Weapon Main Hydra Splatling.png Hydra Splatling and S3 Weapon Main E-liter 4K.png E-liter 4K excel at shooting the bomb directly, since they have extremely long range and outstanding damage.
    • Using a S3 Weapon Special Crab Tank.png Crab Tank on the bomb is highly effective. The Crab Tank can theoretically deal 7,110 direct damage (by landing all 111 bullet shots with and one finishing cannonball with ) on the King Salmonid, not including weak point damage.
    • All other special weapons help with defeating Boss Salmonids, dealing damage to the King Salmonid, or simple crowd control. Make sure to use the allotted special, as every bit of damage counts.
  • Remember that the Egg Cannon does not use any ink and can take out most Boss Salmonids in one shot, trading one Golden Egg for three most of the time.


We're probably legally required to inform you that a new type of King Salmonid may begin appearing in March. It's a giant, terrifying serpent called Horrorboros, and did we mention that it flies? But... you'll probably be fine. Remember - you can earn a sticker!
— @SplatoonNA on Twitter[2]
A new King Salmonid has been sighted snaking through the skies in #Splatoon3! Witnesses are referring to it as 'Horrorboros'...
— @NintendoEurope on Twitter[3]


Main article: Badge#Salmon Run Next Wave

Splatting Horrorboroses a specific number of times in Salmon Run: Next Wave will reward the player with special badges that they can use on their Splashtag.

Horrorboros Badges
S3 Badge Horrorboros 10.png Horrorboros Splats x 10
S3 Badge Horrorboros 100.png Horrorboros Splats x 100
S3 Badge Horrorboros 1000.png Horrorboros Splats x 1,000

Horrorboros figure locker decorations are also available as Big Run rewards.

Decoration Obtain
S3 Decoration base Horrorboros.png Participation
S3 Decoration bronze Horrorboros.png The Top 50%
S3 Decoration silver Horrorboros.png The Top 20%
S3 Decoration gold Horrorboros.png The Top 5%



  • Horrorboros' hair is similar to that of Stingers.
  • Horrorboros' bomb is similar to the Steelhead's, only it is larger, has more health and creates a Booyah Bomb explosion.


Horrorboros is a portmanteau of "horror" and "ouroboros", an ancient symbol of a serpent or dragon that is eating its own tail.

Names in other languages

Language Name Meaning
Japan Japanese タツ
From 龍/竜/辰 tatsu "Chinese dragon" and possibly タツノオトシゴ tatsu no otoshigo "seahorse", literally "dragon's illegitimate child"
Netherlands Dutch Horroboros Similar to English
Canada and France French Salmophide Portmanteau of salmonid and the suffix -ophide derived from ophidien, meaning "snake-like". Possibly similar to the word gymnophide, "a snake with smooth and slimy skin".
Germany German Horroboros Similar to English
Italy Italian Orroboros Similar to English
Russia Russian Скверноборос
From скверный skvernyy (bad, nasty) or скверна skverna (filth) and уроборос uroboros (ouroboros)
Spain Spanish Dragón Dragon
China Chinese (Simplified) 辰龙
chén lóng
"辰" (the 5th Earthly Branch symbol "Dragon") + "龙" (Chinese dragon). Both characters imply "dragon" with Japanese pronunciations matching the Japanese name tatsu. Literally could mean "Dragon Chen"
Hong Kong Chinese (Traditional) 辰龍
chén lóng
"辰" (the 5th Earthly Branch symbol "Dragon") + "龍" (Chinese dragon). Both characters imply "dragon" with Japanese pronunciations matching the Japanese name tatsu. Literally could mean "Dragon Chen"
South Korea Korean