Popseidon

Revision as of 18:18, 8 December 2025 by Qwertyxp2000 (talk | contribs) (Ice Jet: 44.1 lifespan cap)
Popseidon
Portrait of Popseidon
Icon of PopseidonPopseidon'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.
Tower Mermonkey — Path 2 — Tier 5
XP cost 70,000
Cash cost $40,800 — Easy
$48,000 — Medium
$51,840 — Hard
$57,600 — Impoppable

Popseidon is the Mermonkey's path 2 tier 5 upgrade in Bloons TD 6. Alongside a new separate Ice Jet ability that additionally summons a freezing wave, Popseidon gains two lateral tridents shot independently to the main trident, in an arc of 45° (60° with 0-5-1).

Both tridents do more damage. Base range also increases from 32 to 50 (43.2 to 67.5 on water). Popseidon's Ice Jet ability summons a wave that deals 70 to all Bloons (+70 bonus to Frozen Bloons) except those with Purple and White immunities, in addition to Ice Jet projectiles that do 30 damage instead of 20 and also bounce off the edges of the map.

Mechanics

Trident

The trident attack gains the following benefits compared to Arctic Knight:

  • Increased base damage from 8 to 15, and does +7.5 damage to frozen Bloons and +15 damage to MOAB-class Bloons.
  • Wavelet damage increased from 8 to 15, and does +7.5 damage to frozen Bloons and +15 damage to MOAB-class Bloons.

Like previous upgrades, tridents grow in projectile radius and damage at a steady rate, and create two wavelets at 180° apart that deal non-scaling damage and lose projectile size as they travel. All tridents and wavelets also have 25 pierce.

Ice Jet

 

Popseidon's Ice Jet is separated from Arctic Knights. When activated, the Mermonkey stops the trident attack, triggers a wave that deals 70 frigid damage (+70 bonus to Frozen Bloons) to all bloons on screen and freezes all damaged bloons for 8 seconds, then rapidly shooting out ice balls for 3 seconds, at a rate of 0.1s per ice ball. While shooting, ice balls have a 30° angle deviation. Ice balls can affect all except White and Purple, and ignores White properties, and deals 30 damage that doesn't penetrate multiple layers and 240 pierce. Ice balls can bounce off obstacles and the edges of the map, and can rehit bloons after bouncing off obstacles. They last for up to 15 seconds on screen, and have a cap of 20 seconds if lifespan is increased through external buffs.

Like Arctic Knight, Popseidon gains a target marker that focuses the direction of the Ice Jet ability's shots, instead of aiming based on standard targeting priorities. This target marker can be deactivated once a mark is set, which goes through a 5 second cooldown before reactivating a target.

This ability has 45 seconds cooldown.

Stats

For a complete list of Mermonkey stats, see Stats:Mermonkey (BTD6).
This data was last updated for: version 55.1
Tower
Display range40 units
Footprint radius8 units
Targeting options
  • First
  • Last
  • Close
  • Strong
Attack
Cooldown0.75s
Offset (X, Y, Z)
-0.5, 3.4, 12
TargetingDepends on targeting option
Targeting range40 units
Filters
  • Cannot target Camo
Projectile
Pierce25
Damage15
Damage to MOAB-Class+15
Damage to frozen+7.5
Damage typeFrigid
Speed130 units/s
Lifespan1.5385s
Radius1 unit
Filters
  • Ignores White if its damage type cannot damage it
  • Cannot hit Camo
Freeze
Multiplier×0
Duration1s
Layers5
Split projectile
Count2
Angle180°
Pierce25
Damage15
Damage to MOAB-Class+15
Damage to frozen+7.5
Damage typeFrigid
Speed100 units/s
Lifespan2s
Radius1 unit
Filters
  • Ignores White if its damage type cannot damage it
  • Cannot hit Camo
Freeze
Multiplier×0
Duration1s
Layers
Side tridents
Cooldown0.75s
Offset (X, Y, Z)
-0.5, 3.4, 12
TargetingDepends on targeting option
Targeting range40 units
Filters
  • Cannot target Camo
Projectile
Count2
Angle45°
Pierce25
Damage15
Damage to MOAB-Class+15
Damage to frozen+7.5
Damage typeFrigid
Speed130 units/s
Lifespan1.5385s
Radius1 unit
Filters
  • Ignores White if its damage type cannot damage it
  • Cannot hit Camo
Freeze
Multiplier×0
Duration1s
Layers5
Split projectile
Count2
Angle180°
Pierce25
Damage15
Damage to MOAB-Class+15
Damage to frozen+7.5
Damage typeFrigid
Speed130 units/s
Lifespan1.5385s
Radius1 unit
Filters
  • Ignores White if its damage type cannot damage it
  • Cannot hit Camo
Freeze
Multiplier×0
Duration1s
Layers
Ability
Cooldown45s
Lifespan3s
Disables other attacks3s
Attack
Cooldown0.1s
Offset (X, Y, Z)
0, 0, 0
Targeting range∞ units
Filters
  • Cannot target Camo
  • Ignores blockers
Projectile
Angle30°
Pierce240
Damage30
Damage typeFrigid
Speed260 units/s
Lifespan15s
Persists between rounds1
Radius2 units
Filters
  • Ignores White if its damage type cannot damage it
  • Cannot hit Camo
Freeze
Multiplier×0
Duration3s
Layers3
Flood
Cooldown7s
Offset (X, Y, Z)
0, 0, 0
Targeting range∞ units
Filters
  • Cannot target Camo
  • Ignores blockers
Projectile
Pierce9,999,999
Damage70
Damage typeFrigid
Lifespan0.05s
Radius∞ units
  • Ignores blockers
  • Does not disappear if it hits an immune target
Permafrost
Multiplier×0.5
Duration8s
Layers10
Buff when in water
Range modifier×1.35

1-5-0

Attack
Cooldown0.75s → 0.6s
Offset (X, Y, Z)
-0.5, 3.4, 12
-0.5, 3.4, 7
Side tridents
Cooldown0.75s → 0.6s
Offset (X, Y, Z)
-0.5, 3.4, 12
-0.5, 3.4, 7

2-5-0

Attack
Cooldown0.6s → 0.4125s
Projectile
Speed130 units/s → 195 units/s
Lifespan1.5385s → 1.0256s
Side tridents
Cooldown0.6s → 0.4125s
Projectile
Speed130 units/s → 195 units/s
Lifespan1.5385s → 1.0256s
Split projectile
Speed130 units/s → 195 units/s
Lifespan1.5385s → 1.0256s
Ability
Attack
Projectile
Speed260 units/s → 390 units/s

0-5-1

Attack
Offset (X, Y, Z)
-0.5, 3.4, 12
-0.5, 3.4, 7
Filters
  • Can now target Camo
Projectile
Seeking distance80 units
Seeking angle360°
Seeking rotation speed169 °/s
Filters
  • Can now hit Camo
Split projectile
Filters
  • Can now hit Camo
Side tridents
Offset (X, Y, Z)
-0.5, 3.4, 12
-0.5, 3.4, 7
Filters
  • Can now target Camo
Projectile
Angle45° → 60°
Seeking distance80 units
Seeking angle360°
Seeking rotation speed169 °/s
Filters
  • Can now hit Camo
Split projectile
Filters
  • Can now hit Camo
Ability
Attack
Filters
  • Can now target Camo
Projectile
Filters
  • Can now hit Camo
Flood
Filters
  • Can now target Camo

0-5-2

Echosense Network
Range modifier+7.5%
Max. stacks10
  • Has global range

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
0-5-0 $53,315 $62,725 $67,745 $75,270 $37,321 $43,908 $47,422 $52,689
1-5-0 $53,440 $62,875 $67,905 $75,450 $37,408 $44,013 $47,534 $52,815
2-5-0 $53,650 $63,125 $68,175 $75,750 $37,555 $44,188 $47,723 $53,025
0-5-1 $53,485 $62,925 $67,960 $75,510 $37,440 $44,048 $47,572 $52,857
0-5-2 $53,725 $63,205 $68,260 $75,845 $37,608 $44,244 $47,782 $53,092

Strategy

This section was last updated for: version 52.1

For its rather steep price, Popseidon is a powerful T5 that only has damage type issues and a lack of single-target damage. Due to its complete lack of White and Purple popping, it is more suitable for late-game when combined with additional defenses that can deal with Round 95's Camo Regrow Purple spam, because all its attacks are usually sufficient enough to clear out Super Ceramics and weaker MOABs and DDTs. Use its ability against a fast rush of bloons, freezing clumps while clearing out any excess bloons.

Both crosspaths are have solid use cases. The Trident Efficiency and Trident Swiftness upgrades provide maximum DPS but forgo the homing tridents, innate camo detection, and potentially massive range. The top crosspaths are preferred for reliable cleanup against dense clumps, but otherwise bottom crosspaths are more effective for general cases. Note that it needs camo detection to freeze invisible DDTs with the ability.

Update history

For a complete list of Mermonkey changes, see Update history:Mermonkey (BTD6).
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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.
— Update notes
  •   Ice Jet: Projectile lifespan is now capped at 20 seconds
  •   Ice Jet: Projectile damage type changed ― Shatter → Plasma
While the Arctic Knight has been popular, Riptide Champion has major pierce issues and is seeing a price reduction as well as a pierce increase to make up for this. Arctic Knight itself is receiving the brand new damage type added this update; as it is gaining a weakness to White Bloons from this and wasn’t too wild before we are increasing the power as well & allowing the ability to carry over 1 round to prevent projectiles timing out immediately when cast at the end of a round. Popseidon had unintentionally more pierce on the central trident’s split projectiles, so this pierce is being spread out for a total increase. Finally popseidon released with a very wide projectile arc to prevent the seeking projectiles from clumping immediately, we like how this has worked out but feel that only the 052 crosspath needs to have this increased arc.
— Update notes
  •   Overall cost reduced by $625 (due to cost changes for previous tiers)
  •   Central trident: pierce increased ― 16 → 18
  •   Side trident: pierce increased ― 16 → 18
  •   Central split trident: pierce decreased ― 24 → 18
  •   Side split trident: pierce increased ― 16 → 18
  •   Projectile arc reduced ― 60° → 45°
    • Note: 0-5-2 crosspath projectile arc remains the same
  •   Trident: damage type changed ― Plasma → Frigid
    • Note: Projectile will be destroyed when hitting White properties
  •   Ability: damage type changed ― Plasma → Frigid
    • Note: Projectile will be destroyed when hitting White properties
  •   Ability: projectiles now carry over 1 round
While we were happy with Arctic Knight’s Ice Jet being a high pierce MOAB layer removal that could with other tower combinations be upgraded to a more effective full-clear, there is not currently enough varied ways of quickly dealing with White Bloon layers, so for a long cooldown based ability this heavy a weakness is too much for now.
— Update notes
  •   Ice Jet: Projectiles pass through White or Zebra Bloons if they can't damage them, instead of destroying the projectile
  •   Ice Jet: Projectile lifespan reduced ― 20s → 15s (undocumented)
2-5-0
  •   Now reduces the lifespan of Ice Jet projectiles by 33% (undocumented)
    • Note: This means the maximum travel distance of Ice Jet projectiles is now the same as without the crosspath, since this crosspath increases their projectile speed by 50%
Middle path is seeing a consistency improvement for Freeze Duration & White Bloons, and Popseidon’s ability is being improved to damage & slow DDTs (if it can see them) and destroy all non-fortified Ceramics.
— Update notes
  •   Trident: Freeze duration increased ― 0.3s → 0.8s
  •   Split trident: Freeze duration increased ― 0.3s → 0.8s
  •   Trident: Now passes through White Bloon properties unless it can damage them
  •   Ability wave: Damage type changed ― ShatterFrigid
    • Note: Can damage Lead but not Purple or White
  •   Ability wave: Damage increased ― 9 → 70
0-5-1
  •   Lateral Trident: Arc increased ― 45° → 60°
    • Note: 0-5-2 unchanged at 60°
[While talking about Riptide champion ...], and the rest of the path is also seeing a damage increase.
— Update notes
  •   Overall cost reduced by $300 (due to cost changes for previous tiers)
  •   Main and split projectiles: Damage increased ― 12 → 15
  •   Main and split projectiles: Bonus damage to MOAB-Class Bloons increased ― +12 → +15
  •   Main and split projectiles: Bonus damage to frozen Bloons increased ― +6 → +7.5 (undocumented)
Mermonkey weren’t[sic] feeling they favoured their natural habitat enough, so their Water Placement bonus is getting a boost. Middle Path Mermonkey just isn’t putting in the work we hoped, so we’re giving a couple price adjustments, a pierce increase across all tiers, and some light ability improvements to make it feel more rewarding.
— Update notes
  •   Upgrade cost reduced ― $52,000 → $48,000
    •   Overall cost reduced by $4,400 (due to cost changes for previous tiers)
  •   Side trident: Pierce increased ― 18 → 25
  •   Ability: Projectiles can now re-hit targets after bouncing from a map border (bug fix)
    • Note: Previously they could only re-hit if bounced from an obstacle
  •   Ability: Permafrost duration increased ― 6s → 8s
  •   Ability: Permafrost now affects up to 10 layers under the initial layer
  •   Ability: Flood Now deals +70 bonus damage to Frozen Bloons
  •   Ability: Flood now applies Freeze and Permafrost to BADs and Boss Bloons (bug)
    • Note: These Bloons won't be stopped for the Freeze but will take the extra damage, their speed is still reduced by Permafrost.
  •   Trident: Pierce increased ― 18 → 25
  •   Range bonus when placed in water increased ― +25% → +35%
2-5-0
  •   Ability: Projectile lifespan increased ― 10s → 15s
  •   Ice Jet — Flood: No longer applies Freeze or Permafrost to BADs and Boss Bloons (bug fix)
  •   Overall cost reduced by $975 (due to cost changes for previous tiers)
  •   Ice Jet: Projectile speed increased ― 200 units/s → 220 units/s (undocumented)
  •   Trident: Projectile speed increased ― 100 units/s → 110 units/s
  •   Trident: Projectile lifespan decreased ― 2.0s → 1.8181s
    • Note: Maximum distance traveled by the projectile unchanged. Popseidon side tridents are also affected.
1-5-0
  •   Trident and Side Tridents: Attack cooldown reduced ― 0.51s → 0.48s (attack speed increased by 6.25%)
    • Note: The patch notes do not specify that the attack speed buff is only for the main trident attack, all other attacks unchanged.
2-5-0
  •   Trident: Projectile speed increased ― 150 units/s → 165 units/s
  •   Trident: Projectile lifespan decreased ― 1.3333s → 1.1212s
    • Note: Maximum distance traveled by the projectile unchanged. Popseidon side tridents are also affected.
  •   Ice Jet: Projectile speed increased ― 300 units/s → 330 units/s (undocumented)
  •   Trident and Side Tridents: Attack cooldown reduced ― 0.402s → 0.33s (attack speed increased by 21.82%)
    • Note: The patch notes do not specify that the attack speed buff is only for the main trident attack, all other attacks unchanged.
0-5-1, 0-5-2
  •   Trident (seeking): Turn rate increased ― 130°/s → 143°/s (undocumented)
Riptide Champion as an underappreciated star performed exceptionally well with recent changes which are now being scaled back and Popseidon which was also performing extremely well will likewise be scaled back
— Update notes
  •   Upgrade cost increased ― $48,000 → $52,000
    •   Overall cost increased by $4,300 (due to cost changes for previous tiers)
  •   Range reduced ― 50 → 40
Mermonkey ended up somewhat underrated and overbuffed, mid tiers for top and middle paths have really stood out here lately and need to be reigned back in line.
— Update notes
  •   Overall cost increased by $625 (due to cost changes for previous tiers)
  •   Main attack: Freeze duration for Rainbow Bloons and below increased ― 0.8s → 1s
  •   Main attack: Freeze duration for Ceramic Bloons decreased ― 0.8s → 0.5s
  •   Trident: Projectile speed increased ― 110 units/s → 130 units/s
    • Stacks with 2-X-0 Trident Swiftness crosspath ― 165 units/s → 195 units/s
  •   Trident: Projectile lifespan decreased ― 1.8182s → 1.5385s
    • Stacks with 2-X-0 Trident Swiftness crosspath ― 1.2121s → 1.0256s
    •   Overall projectile distance remains unchanged (200 units) for all crosspaths
  •   Trident: Attack cooldown increased ― 0.6s → 0.75s (attack speed reduced by 20%)
    • Stacks with 1-5-0 Trident Efficiency crosspath ― 0.48s → 0.6s
    • Stacks with 2-5-0 Trident Swiftness crosspath ― 0.33s → 0.4125s
  •   Ability: Projectile speed increased ― 220 units/s → 260 units/s
    • Note: Projectile distance increased ― 3,300 units → 3,900 units
    • Stacks with 2-5-0 Trident Swiftness crosspath ― 330 units/s → 390 units/s
      • In this case the projectile distance is increased ― 4,950 units → 5,850 units
0-5-1, 0-5-2
  •   Trident: Turn rate increased ― 143°/s → 169°/s
For more Mermonkey images, see Gallery:Mermonkey.

Screenshots

Assets

Trivia

  • Internally, the ability is named RogueWave, according to its ability icon artwork's filename.

In other languages

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