The Final Harmonic

The Final Harmonic

This elder can echo its irresistible tune anywhere. While devastating to Bloons, the call inspires nearby Heroes with improved range and cooldowns, and Magic Monkeys extra pierce.

Tower	Mermonkey — Path 3 — Tier 5
XP cost	52,000
Cash cost	$21,250 — Easy $25,000 — Medium $27,000 — Hard $30,000 — Impoppable

← Symphonic Resonance

The Final Harmonic is the Mermonkey's path 3 tier 5 upgrade in Bloons TD 6. It unlocks a buff that applies to all Heroes and Magic towers (except itself) within the totem's range if it exists, or the Mermonkey's range if not. It grants Heroes +15% range and -15% Activated Ability cooldowns and grants Magic towers +3 pierce. Additionally, this upgrade increases the range of the Mermonkey (and its totem, by extension) from 32 units to 38 units, the pierce of its trident splashes from 9 to 18, and further enhances its trance attack.

This upgrade reduces the trance attack's cooldown to 3 seconds, increases its damage over time damage cap to 10,000, and allows its totem to be placed onto any valid location on-screen. It also allows the trance to affect BFBs, ZOMGs, BADs, and Boss Bloons: it can pull in and trance BFBs and ZOMGs in the same way as MOABs and DDTs, but against BADs and bosses, it only strips Camo and detonates damage over time, without pulling them in. BFBs, ZOMGs, BADs, and bosses all consume +3 pierce for the trance.

Stats

For a complete list of Mermonkey stats, see Stats:Mermonkey (BTD6).

This data was last updated for: version 55.1

Tower
Display range 38 units Footprint radius 8 units Targeting options First Last Close Strong

Attack
Cooldown 1.2s Offset (X, Y, Z) -0.5, 3.4, 12 Targeting Depends on targeting option Targeting range 38 units
Projectile Pierce 2 Speed 200 units/s Seeking distance 80 units Seeking angle 360° Seeking rotation speed 260 °/s Lifespan 1s Radius 1 unit Splash Pierce 18 Max pierce 18 Damage 2 Damage type Shatter Lifespan 0.05s Radius 4 units Ignores blockers

Buff when in water
Range modifier ×1.35

Echosense Network
Range modifier +7.5% Max. stacks 10
Has global range

Trance totem

Tower
Display range 38 units Footprint radius 8 units

Trance attack
Cooldown 12s Min. cooldown 12s Offset (X, Y, Z) 0, 0, 0 Targeting First Targeting range 38 units
Ignores blockers
Projectile Pierce 12 BFB pierce penalty +3 ZOMG pierce penalty +3 DDT pierce penalty +3 BAD pierce penalty +3 MOAB-Class pierce penalty +2 Lifespan 6s Radius 38 units Rehit interval 0.3s Refresh pierce interval 0.3s Ignores blockers Removes Camo Trance Damage type Plasma Multiplier ×3 Multiplier for MOAB-Class ×1 Duration 6s Cooldown 1s

Range buff
Range modifier +15% Filters Only affects category: Heroes

Ability cooldown buff
Ability cooldown modifier -15% Filters Only affects category: Heroes

Pierce buff
Pierce bonus +3 Filters Only affects category: Magic Does not affect parent tower

1-0-5

Attack
Cooldown 1.2s → 0.96s Offset (X, Y, Z) -0.5, 3.4, 12 ↓ -0.5, 3.4, 7

Trance totem

Trance attack
Projectile Rehit interval 0.3s → 0.27s Refresh pierce interval 0.3s → 0.27s

2-0-5

Attack
Cooldown 0.96s → 0.66s
Projectile Speed 200 units/s → 300 units/s Seeking rotation speed 260 °/s → 390 °/s Lifespan 1s → 0.6667s

Trance totem

Trance attack
Projectile Rehit interval 0.27s → 0.234s Refresh pierce interval 0.27s → 0.234s Trance Multiplier ×3 → ×4.5 Multiplier for MOAB-Class ×1 → ×1.5

0-1-5

Attack
Offset (X, Y, Z) -0.5, 3.4, 12 ↓ -0.5, 3.4, 7
Projectile Pierce 2 → 3 Splash Pierce 18 → 21 Max pierce 18 → 21

Trance totem

Trance attack
Projectile Pierce 12 → 14

0-2-5

Attack
Splash Freeze Multiplier ×0 Duration 0.5s Layers 4

Costs and sell values

Note: this list does not factor in Monkey Knowledge or other discounts.

Tiers	Total cost				Sell value
	Easy	Medium	Hard	Impoppable	Easy	Medium	Hard	Impoppable
0-0-5	$30,075	$35,380	$38,210	$42,455	$21,053	$24,766	$26,747	$29,719
1-0-5	$30,205	$35,530	$38,370	$42,635	$21,144	$24,871	$26,859	$29,845
2-0-5	$30,415	$35,780	$38,640	$42,935	$21,291	$25,046	$27,048	$30,055
0-1-5	$30,245	$35,580	$38,425	$42,695	$21,172	$24,906	$26,898	$29,887
0-2-5	$30,435	$35,805	$38,670	$42,965	$21,305	$25,064	$27,069	$30,076

Strategy

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This section was last updated for: version 52.0

Final Harmonic is a fairly inexpensive but reliable method of pulling in BFBs and ZOMGs into a specific area, especially on maps that have separated simultaneous lanes, in addition to a much higher limit to its damage-over-time (DoT) detonation. With many Echosense Network buffs, its trances can cover a very wide area and have no trouble reaching all lanes on most maps. Additionally, its special buffs in trance range can assist Magic synergies that have low flat pierce (this buff is a flat pierce bonus) and Heroes that depend on abilities and/or range, including Heroes that buff other towers.

To optimize the damage-over-time detonation, its best pairing for the cost is the 5-0-2 Bloon Solver. For higher-cost towers with stronger DoTs, Super Mines is an effective choice. Avoid mixing with low-damage DoTs (e.g. Hot Shot Buccaneers), as these may trigger first, wasting the DoT detonations.

2-0-5 crosspath is typically preferred for the faster DoT detonations and faster pickup of DDTs. 0-1-5 holds more, but since the trance already has reasonable pierce and Sharper Prongs adds only a small amount, it's less effective. 0-2-5 is no different to 0-1-5 except for the larger freezing tridents.

Update history

For a complete list of Mermonkey changes, see Update history:Mermonkey (BTD6).

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Version 44.1

• "Weapon model glitch with crosspathing resolved"
•  Can now detonate damage over time effects on Dreadbloon (bug fix)
•  If the player has more than five Mermonkeys with Echosense Network, selling any of the first five Mermonkeys that received the upgrade no longer removes an Echosense Network buff stack from all affected Mermonkeys regardless of the number of Mermonkeys with the upgrade remaining (bug fix)
  • Note: This bug would cause the number of stacks to be lower than the number of Mermonkeys with Echosense Network
•  Totem: Can no longer be sacrificed to Sun Temple or True Sun God

Version 45.0

“

Echosense Network hasn’t felt like it is doing all that it could, so we have increased the maximum number of stacks to raise the ceiling of use here as it is meant to be slow ramping with a high space & cost investment to build heavily into. [...] Same as with Abyss Dweller the middle crosspath has shown to be less useful for higher tiers, so this also sees a pierce increase to the Trance attack.
— Update notes

”

•  Overall cost increased by $2,075 (due to cost changes for previous tiers)
•  Totem: Can now be redeployed by Support Chinook
•  Totem: Should save location correctly on moving platforms (bug fix)
•  Trident: Projectile lifespan increased ― 0.5s → 1s
•  Maximum Echosense Network stacks increased ― 5 → 10
  • Maximum range buff increased ― +30% → +60%
• Effects now update according to attack speed changes (bug fix)

0-1-5, 0-2-5

•  Sharper Prongs now grants the trance attack +1 pierce

Version 47.0

•  Totems should no longer be considered overclock targets (bug fix)

Version 48.0

•  Trance: Orbit radius increased to match the previous tier ― 20 units → 30 units

0-1-5, 0-2-5

•  Sharper Prongs grants more pierce to the trance attack ― +1 → +2

Version 49.0

•  Overall cost reduced by $100 (due to cost changes for previous tiers)
•  Echosense Network now works with Mermonkeys converted by Total Transformation

Version 49.2

•  DoT detonation works correctly when crosspathed (bug fix)

Version 50.0

“

Recent changes to Symphonic Resonance caused its pierce usage to increase for far too much of a nerf, so we have increased the pierce to offset this.
— Update notes

”

•  Trance: Pierce increased ― 4 → 8

0-1-5, 0-2-5

•  Trance: Pierce increased ― 6 → 10

Version 51.0

“

Mermonkey weren’t^[sic] feeling they favoured their natural habitat enough, so their Water Placement bonus is getting a boost.
— Update notes

”

•  Range bonus when placed in water increased ― +25% → +35%

Version 52.0

“

Last update many players felt blindsided when Brickell stopped applying her buff to Mermonkeys since there was no mention in the balance changes section. We would like to apologize for that - it was tasked internally as a bug as it was indeed unintended to work that way. We then left the issue alone for a long time, mostly due to other more pressing matters, and this issue fell through the cracks. In retrospect, it would have been better to treat this as balance rather than a simple bug fix due to how much time had passed. Reading through your feedback, we did consider just reverting the change, however the bigger issue that the feedback reinforced to us was that players considered Mermonkey to be so bad that it was only a "good" tower when used in combination with a single, water-only hero. This sort of forced synergy goes against our design intentions - namely that Mermonkey being our signature amphibious tower should be able to stand on its own without being balance-locked to an interaction with a single hero. With all that in mind, we feel Mermonkey's highest priority right now is large sweeping buffs to each of the paths, so most of the following changes are our first step towards this starting from the low tier crosspaths.
— Update notes

”

•  Overall cost reduced by $200 (due to cost changes for previous tiers)
•  Trance: Pierce increased ― 8 → 10

0-1-5, 0-2-5

•  Trance: Pierce increased ― 10 → 12

Version 53.0

•  Trance: Pierce increased ― 10 → 12
  • Stacks with X-1-X Sharper Prongs crosspath ― 12 → 14
•  Range bonus per stack reduced ― +10% → +7.5%
  • Note: Maximum range bonus decreased from +100% to +75%

Version 54.0

•  Overall cost increased by $25 (due to cost changes for previous tiers)

Version 55.0

•  Trance: Hero buff works again (bug fix)

Version 56.0

• Trance: Now allows the formation of glue puddles from 4-X-X Glue Gunners after destroying a Bloon (bug fix)

Version 56.1

• Totem: No longer turns invisible while the player is repositioning it (bug fix)

Gallery

For more Mermonkey images, see Gallery:Mermonkey.

Screenshots

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Assets

• 
  Portrait
• 
  Icon
• 
  Buff icon
• 
  Insta Monkey icon

In other languages

This section was last updated for: version 55.2

Name

Language	Text	Notes
Arabic	التوافق النهائي	—
Danish	Den sidste harmoni	—
German	Die letzte Harmonie	—
Spanish	La armonía final	—
Spanish (Latin America)	El armónico final	—
Finnish	Lopullinen ylä-ääni	—
French	La dernière harmonique	—
Italian	L'armonica finale	—
Japanese	最終ハーモニー	—
Korean	마무리 화음	—
Dutch	Slotharmonie	—
Norwegian	Den siste overtone	—
Polish	Harmonia ostateczna	—
Portuguese (Brazil)	A Harmonia Final	—
Russian	Финальная гармония	—
Swedish	Den slutgiltiga harmonin	—
Thai	ฮาร์โมนิกสุดท้าย	—
Turkish	Son Armonik	—
Chinese (simplified)	最后的和谐	—
Chinese (traditional)	終極和聲	—

Description

Language	Text	Notes
Arabic	يمكن لهذا الطاعن في السن أن يصدح بلحنه الذي لا يقاوم في أي مكان؛ وفي أثناء ذلك يأتي على تدمير البالونات، حيث يعمل النداء على إلهام الأبطال القريبين بمدى ووقت تهدئة محسنين، وقوة اختراق إضافية للقرود السحرية.	—
Danish	Denne ældste kan gentage sin uimodståelige melodi hvor som helst. Mens kaldet ødelægger bloons, inspirerer det nærliggende helte med forbedret rækkevidde og nedkøling, og giver magiske aber mere springkraft.	—
German	Dieser Älteste kann überall sein unwiderstehliches Lied hallen lassen. Sein Ruf wirkt vernichtend auf Bloons, inspiriert jedoch Helden in der Nähe mit verbesserter Reichweite und verbesserten Abkühlphasen und verleiht dem Zauberaffen mehr Durchschlagskraft.	—
Spanish	Este anciano puede hacer eco de su irresistible melodía en cualquier lugar. Si bien es devastador para los bloons, su llamada inspira a los héroes cercanos con un alcance y tiempo de recuperación mejorados, y la perforación adicional de los monos mágicos.	—
Spanish (Latin America)	Este antiguo puede replicar una melodía irresistible en todas partes. Aunque es devastadora para los bloons, la llamada inspira a los héroes cercanos para mejorar el rango y la recuperación y también aumenta la perforación de los monos mágicos.	—
Finnish	Tämä pienen muinaisen vastustamaton sävel kaikuu kaikkialle. Se tuhoaa blooneja ja inspiroi lähellä olevia sankareita paremmalla kantamalla ja palautumisajalla sekä antaa taika-apinoille lisää lävistystä.	—
French	Cet ancien peut faire résonner son irrésistible mélodie n’importe où. Bien que dévastateur pour les Bloons, l’appel inspire les héros à proximité en leur accordant une portée et des temps de recharge améliorés, ainsi que le pouvoir perforant supplémentaire des singes magiques.	—
Italian	L'irresistibile melodia di questo Antico si diffonde in ogni dove. Sebbene sia letale per i bloon, ispira gli eroi vicini con una portata e un tempo di ricarica migliori e conferisce alle scimmie magiche una perforazione extra.	—
Japanese	いたるところで抗えないほど魅惑的なメロディーを奏でる長老。ブルーンにとっては壊滅的だが、近くのヒーローにとっては射程距離とクールダウンを向上させてくれる恵みの旋律。マジックモンキーには追加の貫通効果をもたらす。	—
Korean	이 고대신의 피할 수 없는 노랫소리가 사방에 퍼집니다. 풍선에게는 끔찍하게 들리지만, 주변의 영웅에게는 사정거리 증가와 쿨다운 감소를, 마법 원숭이에게는 추가 관통력을 선사합니다.	—
Dutch	Deze Oudere kan zijn onweerstaanbare melodie overal laten weerklinken. Deze melodie verwoest Bloons, maar inspireert helden in de buurt met een groter bereik en kortere afkoeltijd. Magische apen krijgen bovendien extra doorboring.	—
Norwegian	Den eldre kan bruke ekko for å få den uimotståelige sangen sin overalt. Den er kanskje knusende for bloons, men kallet inspirerer helter i nærheten med forbedret rekkevidde og nedkjølinger, og magiske apers ekstra gjennomtrengning.	—
Polish	Potrafi odbić swoją nieodpartą melodię echem w dowolne miejsce. Jest ona niszczycielska dla blonów, ale jednocześnie inspiruje bohaterów w pobliżu, zwiększając ich zasięg i skracając czasy odnowienia oraz ulepszając zdolność przebijania magicznych małpek.	—
Portuguese (Brazil)	Este Ancião pode ecoar sua melodia irresistível em qualquer lugar. Apesar de devastador para Bloons, o chamado inspira heróis próximos com alcance e recargas melhorados, e perfuração extra para Macacos Mágicos.	—
Russian	Эхо притягательной мелодии старейшины может отразиться где угодно. Для шаров сей зов разрушителен, но героев вблизи вдохновляет: в результате они дальше бьют, их способности быстрее восстанавливаются, а магические обезьяны лучше пробивают.	—
Swedish	Denna Äldre kan låta sin oemotståndliga melodi ljuda var som helst. Ljudet, som är förödande för Bloons, inspirerar Hjältar i närheten med förbättrad räckvidd och kortare nedkylning och Magiska apor får extra genomslag.	—
Thai	เอลเดอร์ตัวนี้สะท้อนเสียงที่เกินต้านได้ทุกที่ ขณะที่ส่งผลกระทบร้ายแรงกับบลูน เมื่อเรียกใช้ก็จะทำให้ฮีโร่มีระยะการทำลาย เวลาคูลดาวน์ และพลังการเจาะพิเศษลิงเวทย์มนต์ดีขึ้น	—
Turkish	Bu İhtiyar, karşı konulmaz melodisini her yerde tekrarlayabilir. Bloon'lar için yok edici olsa da, bu çağrı yakındaki Kahramanlara gelişmiş menzil ve gecikme süreleri sağlarken Sihirli Maymunlara da ekstra delme gücü kazandırır.	—
Chinese (simplified)	这位长老可以让它那无法抗拒的旋律在任何地方回响。在对气球造成毁灭性打击的同时，它的呼唤还能鼓舞附近的英雄，提升其攻击范围并缩短冷却时间，同时使魔法猴子获得额外的穿透力。	—
Chinese (traditional)	這位長老在任何地方都能唱出無法抗拒的歌聲。對氣球造成毀滅性傷害的同時，還可提升附近英雄的攻擊範圍並縮短技能冷卻時間，並提升魔法猴子的穿透力。	—

Trivia

• The Final Harmonic's buffs for Heroes are conceptually similar to the Heroic Presence and Heroic Academy upgrades for the cut Monkey Academy tower.