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A magical trident throwing Monkey of the sea that calls upon the power of the depths for damage, support, or Bloon clean up. Amphibious, but thrives in water.
~ In-game description

Mermonkey is a new magic class tower that was added in Bloons TD 6 in the Version 44.0. Mermonkey can be placed both on land and on water. This tower is unlockable by accumulating pop counts in the same way as Dartling Gunner and Beast Handler, being unlocked after 3,000,000 pops.

The base Mermonkey throws tridents every 1.2s with two pierce, creating a small "stab" of damage each time it hits a bloon, similar to a Dartling's Hydra Rocket Pods upgrade, and can be increased with external pierce buffs. The "stab" has 6 radius, does 2 damage and has 3 "impacts" (i.e. cannot receive external pierce buffs). Mermonkey has 28 base range if placed on land, but is increased by 25% if placed on water, increasing it to 35. Trident has a projectile speed of 200 and projectile lifespan of 0.5s.

Mermonkey has three upgrade paths, each path having 5 upgrades that improve the Mermonkey's power. Along the Path 1 upgrades, the Mermonkey focuses on attacking efficiently, and can unleash an abyssal monster to lash at bloons with its tentacles, plus bonus percentage pierce to nearby towers. Path 2 upgrades focus on piercing many bloons at once, plus embracing the power of freezing waves to the Mermonkey's advantage. Path 3 focuses on the power of the mind, allowing the detection of Camo Bloons, enhancing the range of interconnected Mermonkeys of superior intellect, and attract bloons towards a spiralling aura by generating waves of music.

It costs $510 on Easy, $600 on Medium, $650 on Hard, and $720 on Impoppable.

Description[]

Base mermonkey

Base Mermonkey

The Mermonkey appears as a cyan toned Monkey with a fish-like tail, gills, and purple growths on it's head. It wields a trident and sits on a black rock. The top path Mermonkey fights side by side with a mysterious sea creature that attacks in all directions, slows Bloons down with inky tridents, and enhances all towers within a radius with a percentage pierce increase. Middle path gives ability to send freezing waves that get stronger the further they travel, eventually crashing to form a T-shaped attack. Additionally, middle path Mermonkey deals increased damage to any Frozen targets, and with the Ice Jet ability, fires a quick barrage of bouncing ice projectiles. The bottom path lures Bloons off track with an irresistible melody to dance around the Mermonkey for a short time while also detonating any damage-over-time effects on those Bloons to deal all the remaining DoT immediately.

It was first announced on Ninja Kiwi's Version 41.0 update notes and its placeholder name was "Mermonkey Tower" is confirmed on Ninja Kiwi's Version 42.0 patch notes. Mermonkey Tower is a "non-military water unit". It is also the third water tower ever in the game (not including heroes like Admiral Brickell or Pat Fusty). Ninja Kiwi confirmed its real name, Mermonkey, in their 12th July 2024 blog; in the same blog, they announced that the Mermonkey will be unlocked by pops or optionally with an in-app purchase.

Upgrades[]

Path 1[]

TridentEfficiencyUpgradeIcon
Trident Efficiency
COST: $210 / $250 / $270 / $300
UNLOCK: 160 XP

Description: Acclimation to local water density allows Mermonkey to attack faster with all attacks.
Effect: Increases attack speed by +17.6% (0.85x attack cooldown). Also more attack speed for crosspathed attacks.
TridentSwiftnessUpgradeIcon
Trident Swiftness
COST: $255 / $300 / $325 / $360
UNLOCK: 580 XP

Description: Tridents are thrown faster and travel further.
Effect: Increases attack speed by a further +25% (0.80x attack cooldown) and increases projectile speed of the trident, while retaining total travel distance. Also more attack speed and projectile speed for crosspathed attacks.
AbyssDwellerUpgradeIcon
Abyss Dweller
COST: $1,785 / $2,100 / $2,270 / $2,520
UNLOCK: 2,800 XP

Description: The Abyssal Creature awakens, angrily lashing out at Bloons with powerful tentacles and granting nearby Monkeys a small pierce increase.
Effect: Grows 8 tentacles that slap bloons, dealing heavy damage at a slow rate. Individual tentacles can attack bloons independently. Also grants +5% pierce for all towers in range.
AbyssalWarriorUpgradeIcon
Abyssal Warrior
COST: $3,060 / $3,600 / $3,890 / $4,320
UNLOCK: 11,000 XP

Description: Coats tridents in a thick ink that slows bloons. Abyssal creature grows in power, destroying most Bloons with ease and enhancing nearby Monkeys with more pierce.
Effect: Tridents are coated in thick ink that slow down bloons, including smaller MOAB-class bloons by a reduced slowdown. Tentacles slap faster and deal 18 damage on a larger radius. Grants +15% pierce to nearby towers.
LordoftheAbyssUpgradeIcon
Lord of the Abyss
COST: $24,650 / $29,000 / $31,320 / $34,800
UNLOCK: 68,000 XP

Description: The fully unleashed wrath of the Abyssal Creature brings the power of the depths to the surface, annihilating most Bloons, and greatly enhancing the pierce of nearby Monkeys.
Effect: Even more powerful tentacles that attack faster and slap harder. Also gives +30% pierce to nearby towers. Allows placement of water towers on nearby land. Water towers will not treat affected land as water.

Path 2[]

SharperProngsUpgradeIcon
Sharper Prongs
COST: $255 / $300 / $325 / $360
UNLOCK: 150 XP

Description: Tridents can pop more bloons.
Effect: Trident stabs gain +3 pierce.
TidalChillUpgradeIcon
Tidal Chill
COST: $340 / $400 / $430 / $480
UNLOCK: 700 XP

Description: Icy Tridents are larger and can freeze bloons.
Effect: Increased projectile size from 6 to 9, and additionally freezes bloons for 0.5s and penetrates up to 4 layers. Can freeze White and Zebra Bloons.
RiptideChampionUpgradeIcon
Riptide Champion
COST: $2,380 / $2,800 / $3,025 / $3,360
UNLOCK: 2,500 XP

Description: Mermonkey draws energy from the sea. Tridents grow in size and power as they travel, and crash with devastating force.
Effect: Tridents travelling mid-air increase projectile size and damage, at a rate of +50% damage per second, plus even more damage to Frozen Bloons. When the trident expires, the wave bursts into two opposing wavelets shot laterally. Removes the ability to pop purple bloons.
ArcticKnightUpgradeIcon
Arctic Knight
COST: $6,800 / $8,000 / $8,640 / $9,600
UNLOCK: 16,000 XP

Description: Tridents can pop Lead Bloons and grow in power faster. Ice Jet ability: Launches a barrage of bouncing ice balls following target priority, or targeted point.
Effect: Trident power growth increases to 75% per second, deals even more frozen damage and gains extra MOAB-class damage, and can pop and freeze Leads. Ability rapidly shoots barrages of bouncing ice balls that follow the Mermonkey's targeting priority or a specified point.
PopseidonUpgradeIcon
Popseidon
COST: $44,200 / $52,000 / $56,160 / $62,400
UNLOCK: 70,000 XP

Description: Popseidon's Ice Jet ability draws such power that a rogue wave floods the map with supercooled water, freezing all Bloons and reclaiming the weak for the sea.
Effect: Throws out 3 stronger tridents at a time at double speed. Tridents and Ice Balls deal double damage. Ice Jet freezes all bloons for 9 damage, lasts much longer, and can bounce off of map edges.

Path 3[]

EchosensePrecisionUpgradeIcon
Echosense Precision
COST: $170 / $200 / $215 / $240
UNLOCK: 120 XP

Description: Tridents can detect Camo bloons and tridents seek their target.
Effect: Gains camo detection. Tridents moderately seek in a similar way to Wizard's Guided Magic but do not gain extra lifespan.
EchosenseNetworkUpgradeIcon
Echosense Network
COST: $325 / $380 / $410 / $455
UNLOCK: 670 XP

Description: Increases range for all Echosense Mermonkeys. Stacks up to 5 times.
Effect: Grants +6% increased range for all Echosense Mermonkeys, up to 5 times, including itself.
AlluringMelodyUpgradeIcon
Alluring Melody
COST: $2,380 / $2,800 / $3,025 / $3,360
UNLOCK: 3,000 XP

Description: Entrances non MOAB-Class Bloons with a hypnotic tune, magically detonating all damage over time effects and disrupting Bloon movement.
Effect: Occasionally creates a spiralling echoing aura that hypnotizes all but purple and MOAB-class bloons, forcing them into a counterclockwise spiral around it for a few seconds. Bloons hypnotized by the aura additionally trigger any damage-over-time effects they may have, dealing the full duration's damage all at once, up to 200 damage.
SymphonicResonanceUpgradeIcon
Symphonic Resonance
COST: $3,910 / $4,600 / $4,970 / $5,520
UNLOCK: 14,500 XP

Description: Hypnotic tune can affect low tier MOAB-Class Bloons and strips Camo. Can be set to echo from a nearby point.
Effect: Can hypnotise MOABs, BFBs, and DDTs, and strips Camo properties from affected bloons, and no longer consumes more pierce versus Ceramics. Hypnotic tune can be centered anywhere within Mermonkey's range instead of just the center of itself. Increases maximum DoT trigger damage to 500.
TheFinalHarmonicUpgradeIcon
The Final Harmonic
COST: $21,250 / $25,000 / $27,000 / $30,000
UNLOCK: 52,000 XP

Description: This elder can echo its irresistible tune anywhere. While devastating to Bloons, the call inspires nearby Heroes with improved range and cooldowns, and Magic Monkey's extra pierce.
Effect: Hypnotizes many more bloons, including ZOMGs, and can instantly trigger damage-over-time effects on BADs and Bosses. Hypnotic Tune can be centered anywhere on the map. Also improves nearby Heroes with +15% range and 15% reduced ability cooldowns, and nearby Magic Monkeys gain +3 pierce. Increases maximum DoT trigger damage to 10,000.

Total Cost[]

Strategy[]

See also: Mermonkey (BTD6)/Strategies

Summary[]

Mermonkey is a highly synergetic tower that has unique synergies with various towers. It has many upgrades for freezing, granting extra pierce buffs, and forced handling of bloons. The base tower is also affordable on the first round with decent statistics.

Each of the Mermonkey's upgrades offer a variety of support for the defenses, alongside a decent amount of damage. Top path's upgrades offer bonus pierce for nearby towers, alongside dealing high base damage. Middle path deals a lot of freezing damage, and good synergies with Ice Monkeys. The bottom path's upgrades are a great combo with towers that attack in a radius such as Ice Monkeys or Tack Shooters, as the Mermonkey's call can keep any affected Bloons in a singular place for a long time.

Tips[]

  • Water-placed Mermonkeys are treated as water towers, so they can be buffed by water-exclusive buffs like Admiral Brickell and Carrier Flagship.
  • While subtle, the Mermonkey is left-handed, meaning that the spawn point for the thrown tridents are offset to the left of the center, not the right.
  • The bottom path has a massive synergy with damage-over-time towers such as The Bloon Solver or Glaive Lord, thanks to the song detonating the DoT, allowing for massive damage to be applied per shot. This effect has been confirmed to NOT be a bug by the developers on Reddit.
  • Placement on land compared to water only affects the range of the Mermonkey, aside from not counting as a water tower. In most cases, it is preferrable to place the Mermonkey on water to access the extra range when placed on water. However, some land spots offer a better location for the Mermonkey to utilize its direct attacks and influencial buffs.

Monkey Knowledge[]

Note: The Mermonkey has no Monkey Knowledge exclusive to itself, not even the universal Magic MK Points.

This section displays Monkey Knowledge that has effects on Mermonkey and its changes when compared to one by default:

Version History[]

Balance Changes[]

44.0
  • Released
44.1
  • BUFF On Erosion, Mermonkey that drop into water when the land supporting them is removed will now benefit from the Mermonkey water placement range buff
While we’re not jumping into any full on balance changes, there’s a few corrections that we wanted to make for type-fixes and other intended play.
~ Ninja Kiwi
  • BUFF Riptide Champion split projectiles can now also Freeze Bloons
Lifespan increase to Ice Jet Projectiles has been capped in order to allow this synergy with Obyn to remain somewhat more balanced
~ Ninja Kiwi
  • NERF Arctic Knight's Ice Jet projectile lifespan is now capped at 15s
  • NERF Popseidon's Ice Jet projectile lifespan is now capped at 20s
Damage type fixes - 320 required external Lead-popping which isn’t fun, and x4x was not benefiting from the upgrade’s Lead-popping
~ Ninja Kiwi
  • BUFF Abyss Dweller tentacle damage type changed from Sharp to Shatter
  • Change Arctic Knight ability ice balls damage type changed from Shatter to Plasma
Since the slowing effect was balanced around a bug which is also being fixed in this patch, we’re giving back a little extra power compensation.
~ Ninja Kiwi
  • BUFF Abyssal Warrior MOAB-class slow increased from 10% to 28%
  • BUFF Lord of the Abyss tentacle cooldown decreased from 2s to 1.5s

Bug Fixes and General Changes[]

44.1
  • NERF Towers with platforms can no longer randomly keep towers in mid-air, specifically for Lord of the Abyss.
    • Rohan Spibo from Ninja Kiwi is referring to platforms with Arctic Wind and now the Lord of the Abyss. Source.
  • BUFF On Erosion, Mermonkey that drop into water when the land supporting them is removed will now benefit from the Mermonkey water placement range buff
  • NERF Abyssal Warrior no longer slows MOAB-Class Bloons more than regular Bloons
  • BUFF Lord of the Abyss can correctly slow MOAB Class Bloons
  • BUFF Lord of the Abyss ink platforms no longer prevent some water-based buffs applying
  • BUFF Echosense Network should no longer break when selling any of the first 5 placed
  • Change Symphonic Resonance totems will no longer be sacrificed to temples
  • Change The Final Harmonic weapon model glitch with crosspathing resolved
  • BUFF The Final Harmonic can now detonate damage over time effects from Dreadbloon

Teasers[]

Mermonkey was first announced on Ninja Kiwi's Version 41.0 update notes, referred as the placeholder name "Mermonkey Tower" on Ninja Kiwi's Version 42.0 patch notes. Mermonkey Tower will be a "non-military water unit". Mermonkey is the third water tower ever in the game (not including heroes like Admiral Brickell or Pat Fusty).

Ninja Kiwi answered in multiple blogs about the Mermonkey. The 5th July 2024 blog refers to Mermonkey as "one of [their] best team efforts ever" in terms of creative design.

Ninja Kiwi confirmed its real name, Mermonkey, in their 12th July 2024 blog; in the same blog, they announced that the Mermonkey will be unlocked by pops or optionally with an in-app purchase.

44

Version 44.0 preview notes artwork

On 26th July 2024, Ninja Kiwi released the Version 44.0 preview notes on r/btd6 and the Version 44.0 video "Bloons TD 6 Update 44 Coming Soon - Mermonkey Has Arrived!" on their YouTube channel. Among the confirmed information discovered and confirmed in the official sources:

  • Mermonkey costs $510 on Easy, therefore $600 on Medium, etc.
  • Mermonkey is a Magic Monkey that is amphibious.
  • Each of the Mermonkey's upgrade paths each feature a unique combination of attacking styles.
    • Path 1 focuses on synergetic offense that additionally slow bloons in an aura.
    • Path 2 specializes in producing freezing waves
    • Path 3 involves taking advantage of the bloons to divert movement and additionally set off all damage-over-time effects at once.
    • For lower-tiers, Path 1 involves "Attack & Projectile Speed", Path 2 for "AoE & Freezing", or and Path 3 for "Seeking & Vision"
  • Mermonkey is designed in mind to focus on extra synergies, taking advantage of water, and synergizing with Ice Monkeys.
  • The base Mermonkey throws tridents that penetrate twice, each penetration having 3 pierce.

On 28th July 2024, early access videos for Version 44.0’s developer build were released. The following YouTubers had created videos of them, in no particular order:

Quotes[]


New Monkey Tower: By northern hemisphere mid summer we’re hoping to add an all new Monkey Tower to the game! New Towers with all of their crosspaths and combinations with other Towers takes significant iteration, so we’ve been working with this concept for a non-military water unit for a long time. Every time we’d see fan art in this direction, we’d bite our tongues, but, yes, from the depths of Monklantis…

~ Ninja Kiwi, Version 41.0 patch notes

Jetpack Hero is planned for Update 43 and Mermonkey Tower for Update 44. These are both in progress and looking to add super fun play mechanics - fitting well with the other Monkeys but also standing out as quite unique.

~ Ninja Kiwi, Version 42.0 patch notes

which monkeys and heroes are most excited for mermonkey? what about jetpack hero?
Brickell and Pat are most excited for their water friends, same with Sub and Buccaneer! As for Jetpack, Benjamin and Etienne are looking forward to everyone meeting them, while Engineer can’t wait to talk tech with them.

~ Ninja Kiwi, 26th April 2024 blog

What was the process like of adding a new tower to the game? What were some big challenges? What was rewarding? Is there anything in particular you’re excited for the community to see?
Mermonkey has been one of our best team efforts ever, with Design, Art, Code and more coming together to define how it works, what they look like etc. That’s definitely been the most rewarding and enjoyable part of the process for us.
In terms of challenges, new Monkeys are always very challenging because we want them to bring new strategies to the table and do things or fill roles that other towers don’t yet do.
We’re really excited to see player reaction to the three different paths which we think are all quite unique and fun in their own ways!

~ Ninja Kiwi, 5th July 2024 blog

How is the mermonkey going to be unlocked? Is like beast handler or is it something different?
Great question! We are revising the new Monkey Tower unlock system as we saw that the Beast Handler unlock was not as clear or easy for players, so we’re shifting to a pop-based system for all “new” Monkey Towers, so that will include Dartling Gunner, Beast Handler, and Mermonkey. Players will be able to select which tower they are concentrating on if they want to unlock by pops, but we will also be including an unlock IAP on non-subscription platforms for all 3 towers that will include access to the Monkey, full tier 5 XP, and an exclusive avatar and banner for players who want to get everything right away and who enjoy exclusive cosmetics.

~ Ninja Kiwi, 12th July 2024 blog

  • New Tower, the Mermonkey!
    • Smash them with abyssal tentacly creatures, freeze and wash them away with enchanted waves, and lead them astray with mystical melodies! The Bloons will tremble at the might of the Sea, even on land!
    • Players have been asking about new towers and the community has suggested the existence of a Mermonkey since BTD5, so yes we’ve done it! We are committed to adding new towers to the game when we see genuine spaces for unique tower design and gaps in existing tower synergies, especially in different game modes and Events. Mermonkey adds a valuable water tower outside of the Military category, and the designs relating to range from target, buffs, and ice synergy are intended to spark new placement strategies, fun combos, and interesting tier list discussions
    • Mermonkey starts as a low range amphibious tower with a large vision increase when placed in water. They throw a single trident that pierces twice and can damage up to 3 Bloons each time it does, making it effective during earlier dense rounds where this can overlap. Crosspathing choices include Attack & Projectile Speed, AoE & Freezing, or Seeking & Vision
    • Top path Mermonkey fights side by side with a mysterious sea creature that attacks in all directions, slows Bloons down with inky tridents, and enhances all towers within a radius with a percentage pierce increase
    • Middle path attacks with freezing waves that grow larger and more powerful the further they travel, with the wave eventually crashing to form a unique T-shaped attack! They deal increased damage to any Frozen targets, and with the Ice Jet ability, fire a quick barrage of bouncing ice projectiles
    • Bottom Path lures Bloons off track with an irresistible melody to dance around the Mermonkey for a short time while also detonating any damage-over-time effects on those Bloons to deal all the remaining DoT immediately
~ Ninja Kiwi, Version 44.0 preview notes

Sounds[]

When placed on land:

When placed on water:

When activating Ice Jet Ability:

When activating Popseidon's Ice Jet Ability:

Gallery[]

Teasers[]

Official artwork[]

Videos[]

Other languages[]

Language Name Meaning
English Mermonkey
Russian Морбезьян Portmanteau of "море" (sea) and "обезьяна" (monkey)

Trivia[]

  • Mermonkey Tower is the first non-military non-hero aquatic tower in Bloons TD 6 and of all of the mainline Bloons TD franchise.
Mermonkey banner official photo

Mermonkey in the "Beneath the Waters" Profile banner

  • The Profile Banner "Beneath the Waters" and a scene item from Bloons Pop! depict mermonkeys, both existing before Mermonkeys became playable towers.
  • Since its debut in Version 44.0, it is the only tower in BTD6 to not have a pre-assigned hotkey; it can be set manually by the player, however.
  • In the developer's build of Version 44.0, which is publicly visible via early-access videos, the upgrade portraits for Abyss Dweller, Abyssal Warrior, Lord of the Abyss, Popseidon, Alluring Melody, and The Final Harmonic are all replaced with placeholders of the in-game model plus a pure-color grey rectangle with the text "Mermonkey [crosspath_combo]". For example, Alluring Melody's filler text in the upgrade portrait is "Mermonkey 003".
    • Popseidon is the only Path 2 Mermonkey upgrade with a filler upgrade portrait.
  • Some of the Mermonkey's upgrades are similar to the Bloonchipper, specifically the Path 3's forced repositioning of bloons.
  • Mermonkey is the fourth tower to not have brown fur, the others being the Ice Monkey , the Alchemist, and the Druid.
  • Mermonkey is the first tower released after Big Monkey Towers Option to be a candidate for the Chunky Monkeys achievement (which unlocks Big Monkey Towers Option).
  • According to Rohan, a Ninja Kiwi employee, on Ninja Kiwi Discord, he confirmed that the trident area-of-effect is unable to be affected by pierce buffs, but the trident projectile can. He said the comment "The trident's prongs are capped but the main pierce itself is buffable" on August 5th 2024 5:52pm NZST.
  • Arctic Knight and Popseidon are the only Mermonkeys to wield true tridents. Other Mermonkeys actually use spear-like staffs, except for X-X-3+ Mermonkeys, who use thicker spears made out of heart-shaped gems.
  • Before Version 44.1 patched gaining pops from Quests, players have found that it is very quick to get the required pops of Unlock By Pops towers (such as Mermonkey, but also Beast Handler and Dartling) by playing MOAB Madness multiple times. One successful run would net about 1M pops, each game taking about up to about 2 minutes on Fast Forward (but an average of about 4 minutes per game), taking just 3 games and up to 6 minutes to get all the pops.

Ninja Kiwi Blogs[]

  • According to Ninja Kiwi's 26th April 2024 blog, a lot of heroes and towers are excited for the Mermonkey. Brickell and Pat are the most excited of the heroes to meet the Mermonkey, and same with Monkey Sub and Monkey Buccaneer for the towers who are excited for Mermonkey. The rest of the blogpost talks about how Benjamin and Etienne are excited for Rosalia's (then referred to as Jetpack) arrival, and the Engineer Monkey is excited to talk about technological enhancements with her.
  • According to Ninja Kiwi’s 2nd August 2024 blog, Mermonkeys and middle-path Monkey Buccaneers have a friendly sibling rivalry together.
  • Several things were revealed in the 9th August 2024 blog:
    • Luminous Cove is "just one of many hidden entrances" to Monklantis.
    • It is implied that Mermonkeys do not believe in the Sun God.
    • Mermonkeys are able to be given legs and walk on land through the use of magic.
      • However, the 16th August 2024 blog implies that they prefer not to for whatever reason, and it would be much better for them to have structures on land adapted to their aquatic nature.
    • The 0-5-0 Mermonkey is not the true Popseidon; it simply channels his power, similar to how Sun Avatars work.
    • Mermonkeys were introduced to the surface when Ocean Obyn mentioned he might be able to make contact with Monklantis, after which the monkeys went on a mission to go say hi. The meeting was "rough at first", but Ocean Obyn managed to calm things down, and an alliance was formed quickly.
  • According to Ninja Kiwi's 23rd August 2024 blog, Mermonkeys have their own set of deities that watch over the sea, separate to the religion of the Sun Temple.
  • According to Ninja Kiwi's 23rd August 2024 blog, the most difficult of the Mermonkey upgrades to implement before Mermonkey's initial release in Version 44.0 was the Bloon Trance upgrade path, more specifically the various interactions with "other tower states and subtowers".
  • According to Ninja Kiwi's 6th September 2024 blog, several things were revealed:
    • The Mermonkeys are grateful for Beast Handlers taking care of aquatic beasts with love and care.
    • Mermonkeys are capable of walking on their fins, just harder than walking with feet.

References[]

  1. "The Mermonkey icon" on r/btd6, also Rohan Spibo from NK replied "It's placeholder. The portrait art was not fully implemented yet as of this video"
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