Sentry Champion (BTD6)

For the upgrade in Bloons TD Battles 2, see Sentry Champion (Battles 2).

Sentry Champion

Creates super-powerful but highly unstable sentries.

Tower	Engineer Monkey — Path 1 — Tier 5
XP cost	30,000
Cash cost	$27,200 — Easy $32,000 — Medium $34,560 — Hard $38,400 — Impoppable

← Sentry Expert

Master Builder →

Sentry Champion (formerly named Sentry Paragon before Version 28.0) is the Engineer Monkey's path 1 tier 5 upgrade in Bloons TD 6. The Engineer now deploys Champion Sentries that self-destruct after expiring, causing a large explosion that pops 50 Bloons (75 with Oversize Nails) and deals 100 damage. Champion Sentries shoot plasma balls that pop up to 5 Bloons (10 with Oversize Nails), and deal 3 damage (+1 MOAB-Class and +1 Fortified damage with Deconstruction), with an attack cooldown of 0.06 seconds, and have 50 range (54 with Larger Service Area).

This upgrade also reduces the attack cooldown of the Engineer's nail attack from 0.35 to 0.3 seconds.

Stats

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

This data was last updated for: version 55.1

Tower
Display range 40 units Footprint radius 7 units Targeting options First Last Close Strong

Attack
Cooldown 0.3s Offset (X, Y, Z) -1.11, 13.49, 10.7 Targeting Depends on targeting option Targeting range 40 units Filters Cannot target Camo
Projectile Pierce 3 Damage 1 Damage type Sharp Speed 375 units/s Lifespan 0.24s Radius 2 units Filters Cannot hit Camo

Spawner
Cooldown 5s Offset (X, Y, Z) -1.11, 13.49, 10.7 Targeting Random position Targeting range 40 units
Ignores blockers

Champion Sentry

Tower
Display range 50 units Footprint radius 4 units Lifespan 25s Targeting options First Last Close Strong
Self-destruct Pierce 50 Damage 100 Damage type Plasma Lifespan 0.1s Persists between rounds 1 Radius 50 units Filters Cannot hit Camo Ignores blockers

Attack
Cooldown 0.06s Offset (X, Y, Z) 0, 8.74, 9.89 Targeting Depends on targeting option Targeting range 50 units Filters Cannot target Camo
Projectile Pierce 5 Damage 3 Damage type Plasma Speed 280 units/s Lifespan 0.6s Radius 6 units Filters Cannot hit Camo

5-1-0

Tower
Display range 40 units → 60 units

Attack
Targeting range 40 units → 60 units

Spawner
Targeting range 40 units → 60 units

Champion Sentry

Tower
Display range 50 units → 54 units
Self-destruct Radius 50 units → 54 units

Attack
Targeting range 50 units → 54 units

5-2-0

Attack
Projectile Damage to MOAB-Class +1 Damage to Fortified +1

Champion Sentry

Attack
Projectile Damage to MOAB-Class +1 Damage to Fortified +1

5-0-1

Attack
Projectile Pierce 3 → 8 Damage type Sharp → Shatter

Champion Sentry

Attack
Projectile Pierce 5 → 10

5-0-2

Attack
Projectile Stun Multiplier ×0 Duration 1s Layers 1

Champion Sentry

Attack
Projectile Stun Multiplier ×0 Duration 1s Layers 3

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
5-0-0	$30,880	$36,325	$39,230	$43,590	$21,616	$25,428	$27,461	$30,513
5-1-0	$31,090	$36,575	$39,500	$43,890	$21,763	$25,603	$27,650	$30,723
5-2-0	$31,390	$36,925	$39,880	$44,310	$21,973	$25,848	$27,916	$31,017
5-0-1	$31,265	$36,775	$39,715	$44,130	$21,886	$25,743	$27,801	$30,891
5-0-2	$31,450	$36,995	$39,955	$44,395	$22,015	$25,897	$27,969	$31,077

Strategy

This section was last updated for: version 56.3

Sentry Champion is a very weak tower without external buffs, but it becomes effective in the presence of them. Champion Sentries attack extremely fast with many projectiles, but have very low damage and pierce. They also inherit speed buffs from the Sentry Champion, effectively multiplying the effect of the buff by increasing both sentry attack speed and deployment rate. Thus, pairing it with at least a Call to Arms and Jungle Drums is mandatory for it stand out. Homeland Defense is much stronger, making an effective synergy when used against Bosses.

Sentry Champion also benefits from damage buffs and blimp debuffs. Glue Strike, in particular the Glue Soak crosspath to penetrate blimps, is one of its best pairings. Stormwrath Archon works well with Sentry Champion by letting sentries trigger the lightning rods for collateral damage, in addition to other benefits from the path 2 Skywarden's other upgrades such as Thunder's Decree ability and the sharp/shatter lightning triggers from Galvanic Conduit. Despite a moderate tier 5 cost, Sentry Champion is one of the cheaper tier 5s when accounting for previous tiers, allowing more cash to be spent on the necessary buffs and Bloon debuffs.

Crosspaths are important to maximize its buffability. Where more single-target damage is required, crosspath with Deconstruction, though it faces anti-synergy with Larger Service Area's more erratic sentry placements. However, in general case scenarios, Oversize Nails is preferred in the presence of buffs that take advantage of high pierce, letting the sentries handle dense rounds more efficiently without the anti-synergy of the range upgrade. Pin doesn't affect Super Ceramics, so 5-0-1 is usually enough unless transitioning from Sentry Expert.

Update history

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

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Version 14.0

•  Sentry: Now self-destructs instantly when sold, skipping the shaking animation
•  Sentry self-destruct: Damage increased ― 70 → 85

Version 15.0

•  Overall cost reduced by $300 (due to cost changes for previous tiers)
•  Paragon Sentry: pierce increased ― 3 → 5

Version 17.0

•  Sentry: No longer gains Camo detection after loading a save (bug fix)
•  Sentry spawner: No longer ignores smart placement if the Engineer Monkey cannot reach the track (bug fix)

Version 20.0

“

Continuing our efforts to make crosspaths meaningful and fit the style of each path more solidly, a number of crosspath and base level balance shifts were made.
— Update notes

”

•  Paragon Sentry: Explosion radius now scales with range modifiers
•  Sentry: Spawn rate increased ― 7s → 6s

5-1-0, 5-2-0

•  Larger Service Area now grants +4 range to Sentries

5-0-1, 5-0-2

•  Oversize Nails now allows Sentries to pop frozen Bloons
•  Oversize Nails now increases Sentry pierce by 1

Version 21.0

•  Sentry explosion: Damage increased ― 85 → 100

Version 23.0

5-2-0

•  Deconstruction now grants all Sentries +1 damage to Fortified or MOAB
  • Note: Does not apply +2 damage to Fortified MOABs

Version 26.0

“

Additionally higher tier sentries will now be able to benefit from the xx2 Pin crosspath, so enjoy some laser pins.
— Update notes

”

5-0-2

•  Pin now allows Sentries from Sprockets and above to pin Bloons

Version 28.0

“

Alright, Sentry Paragon is now a Champion
— Update notes

”

• Name changed

Before	Sentry Paragon
After	Sentry Champion

Version 33.0

“

The MOAB offense of top path lacks for a mainly dps tower that is quite complex to use [...] the 320 crosspath will now be able to double dip on the Fortified & MOAB damage bonuses that it gains.
— Update notes

”

•  Main attack: Attack cooldown reduced ― 0.42s → 0.3s (attack speed increased by 40%)

5-2-0

•  Sentry: Deconstruction's bonus damage to MOAB-Class Bloons and Fortified Bloons are no longer mutually exclusive

Version 35.0

“

Sentry Champion’s pierce crosspath does not feel like it has enough of an edge to compete with the deconstruction crosspath.
— Update notes

”

5-0-1, 5-0-2

•  Plasma: Pierce increased ― 6 → 7

Version 39.0

“

Applying pierce crosspathing to Sentry Champion only granting an abysmal +1 pierce to the explosion while an intended joke at the time still feels a little silly, we’re separating that up to get its own larger increase now.
— Update notes

”

5-0-1, 5-0-2

•  Sentry Explosion: Crosspath benefit to pierce bonus increased ― +1 → +21
  • Note: Pierce increased from 51 to 70

Version 43.0

“

Sentry placements are slightly changing to improve their reliability, and will now spawn closer to the track depending on how much range the sentry has. Sentry Champion, while strong with them, is lacking without high buff support so we’re trying out an increase to the sentry damage on it.
— Update notes

”

•  Overall cost reduced by $50 (due to cost changes for previous tiers)
•  Champion Sentry: Damage increased ― 2 → 3
•  Sentry deployment: Sentries now spawn within 20% of their range to the track

Version 47.0

“

This was becoming annoying screen clutter with large numbers of sentries, and feels unnecessary when you can overclock the engineer itself to create more sentries instead.
— Update notes

”

•  Overclock and Ultraboost abilities no longer target Engineer sentries

Version 48.0

“

Really only one major change here; a rebalancing to how the 2xx Crosspath applies across various engineer upgrades, and some base stats being changed to accommodate fitting this.
— Update notes

”

•  Sentry spawner: Attack cooldown reduced ― 6s → 5s (attack speed increased by 20%)
  • Note: Effectively allows one more Sentry at a time without any attack speed buffs

5-0-1, 5-0-2

•  Oversize Nails grants more pierce to Champion Sentries
  • Main attack: +2 → +5
  • Explosion: +20 → +25

Gallery

For more Engineer Monkey images, see Gallery:Engineer Monkey.

Screenshots

• 
  Sentry Champion for all upgrades
• 
  Sentry Champion's sentry attacking
• 
  Sentry Champion's sentry exploding

Assets

• 
  Portrait
• 
  Champion Sentry portrait
• 
  Upgrade icon
• 
  Insta Monkey icon

Models

• 
  Champion Sentry

In other languages

Language	Name / Description	Notes
Arabic	بطل الحراسة إنشاء حرس خارقي القوة ولكن عديمي الاستقرار للغاية.	—
Danish	Vagtpost-mester Skaber super-stærke men højst uberegnelige sensormaskingeværer.	—
German	Wachposten-Champion Erzeugt superstarke Wachtürme, die jedoch ziemlich instabil sind.	—
Spanish	Campeón centinela Crea centinelas superpoderosos y muy inestables.	—
Spanish (LA)	Campeón centinela Crea centinelas superpoderosos y muy inestables.	—
Finnish	Vartiomestari Luo supervoimakkaita mutta todella epävakaita vartiotykkejä.	—
French	Sentinelle champion Crée des sentinelles super puissantes mais très instables.	—
Italian	Sentinella vincitore Crea sentinelle super potenti ma molto instabili.	—
Japanese	見張りチャンピオン 超パワフルだけれど、とても不安定な見張り番を作り出す。	—
Korean	경비 탑 챔피언 어마어마한 파괴력을 지녔지만 불안정한 경비 탑을 생성합니다.	—
Dutch	Geschutskampioen Creëert superkrachtige maar zeer onstabiele geschutskoepels.	—
Norwegian	Mestervakt Lager superkraftige, men svært ustabile vakter.	—
Polish	Strażnik mistrz Tworzy superpotężnych, ale wysoce niestabilnych strażników.	—
Portuguese (Brazil)	Torre Campeã Cria sentinelas superpoderosas, mas altamente instáveis.	—
Russian	Часовой-чемпион Создаёт сверхмощных, но крайне нестабильных часовых.	—
Swedish	Vaktpostmästare Skapar superstarka med mycket instabila vakttorn.	—
Thai	เซนทรี่แชมเปี้ยน สร้างป้อมปืนระวังภัยที่พลังรุนแรงแต่ไม่เสถียรมากๆ	—
Turkish	Gözcü Şampiyon Süper güçlü ama son derece kararsız nöbetçiler oluşturur.	—
Chinese (simplified)	哨兵冠军 创建超级强力，但却非常不稳定的哨岗机枪。	—
Chinese (traditional)	哨兵冠軍 創造出能力超群但是極度不穩定的哨兵。	—
This list was last updated for: version 43.1