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Applies liquefying compounds that do 10 pops every second, and drops powerful acid onto the track after destroying a Bloon.
~ In-game description

Bloon Liquefier is the fourth upgrade of Path 1 for the Glue Gunner in Bloons TD 6.

It increases the corrosion rate of the glue to 1 damage every 0.1s, or 3 damage every 0.1s to Ceramics. As with all Glue Gunners with Corrosive Glue or higher, the Bloon Liquefier can target MOAB-class Bloons and damage them over time, although the glue itself will last half as long, similar to most types of glue, and does not slow them. Each blob can glue up to 2 bloons, like its previous upgrade Bloon Dissolver. It attacks every 0.75s instead of 1.0s.

Additionally, Bloons that were popped by the liquefying glue leave an acid puddle on the track. Puddles left on the track will last for 7.7 seconds and can damage up to 3 Bloons without crosspaths. The acid puddles can be affected by both crosspaths; Bigger Globs increases the pierce of the acid puddles by 1, only with MoreSplattyGlueIcon More Splatty Glue that Glue Splatter can increase its pierce by 2 more; Stickier Glue allows acid puddles to carry over an extra round, and Stronger Glue increases the duration of the acid puddles by 9.1 seconds (16.8 seconds total). Acid puddles deal 2 damage, including already glued targets, but do not apply glue. Acid puddles cannot damage the same bloon after damaging them once.

This upgrade costs $4,250 on Easy, $5,000 on Medium, $5,400 on Hard, and $6,000 on Impoppable.



Bloonliquefier btd6 demo

Bloon Liquefier liquefying bloons and leaving blobs of acid on the track

In a similar way to Bloon Dissolver, its previous upgrade, Bloon Liquefier sports the monkey into a dark blue suit and gas mask with green lenses. The tank carried on the monkey's back remains similar, a colorless tank with green acid with a dark grey strap and a green tube linking it to the blue-grey glue gun. The nozzle has four green taller tanks of green acid, and at the end of the nozzle is a green fume (this is only noticeable on the upgrade portrait).

Bigger Globs recolors both the tank's cap and the nozzle tip from grey to orange, while Glue Splatter adds an orange stripe along the head of the suit. Stickier Glue adds a yellow blob on the monkey's head on its right side, and Stronger Glue replaces that blob with a pink stripe along the head of the suit.

Bloon Liquefier technically upgrades the glue from a Level 3 glue to a Level 4 glue, allowing it to override Dissolver Glue (from Bloon Dissolver) status effects. Bloons affected by Bloon Liquefier, including MOAB-class, are inflicted with one damage every 0.1 seconds for the duration of the glue, or three damage every 0.1s versus Ceramics. MOAB-class bloons receive half the duration.

Targets that pop drop acid puddles that deal 2 damage and pierce a number of targets. Crosspaths also affect the strength of the acid puddles.

Targeting Priorities[]

Bloon Liquefier targets bloons using the standard targeting priorities. It shoots straight movement projectiles.

  • First: Targets the first bloon visible within its range.
  • Last: Targets the last bloon visible within its range.
  • Close: Targets the closest bloon visible within its range.
  • Strong: Targets the strongest bloon visible within its range.

Full Popology[]


Updated as of Version 42.0
Base stats
  • Glue:
    • Projectile, acid type, detects partial hitbox, 46 range, 0.75s attack cooldown, 0 damage, 2 pierce. Applies Liquefying Glue DoT, slowing bloons down by 50%, soaking all bloon layers, and dealing 1 damage every 0.1s or 3 damage every 0.1s versus Ceramics, lasts for 11s. Classified as a Level 4 Glue. Can target MOAB-class bloons but lasts for half duration. When target fully pops, bloon creates Puddle. Bloons with more than one child only drop Puddle from the first child.
  • Puddle:
    • Burst, acid type, on-track, 3 pierce, 2 damage, can hit already glued targets. Lasts for 7.7s or 1 round before disappearing, whichever comes first. Cannot rehit the same bloon more than once.
Crosspathing interactions
  • 4-1-0: Pierce increases from 2 to 3. Puddle pierce increased from 3 to 4.
  • 4-2-0: Pierce of Liquefying Glue decreases to 1 impact but upon collision creates Splatter that deals 5 pierce.
  • 4-0-1: Liquefying Glue lasts for 24 seconds instead of 11. Puddle round duration increased from 1 to 2.
  • 4-0-2: Liquefying Glue slows by 75% instead of 50%. Puddle duration increases from 7.7s to 16.8s.
Monkey Knowledge interactions

Attack Interactions[]

See also: Attack Interactions/Bloons TD 6/Primary
Updated as of Version 38.3
Base attack(s)
  • Glue:
    • Acid Type (pops Black, White, Purple, Lead, Frozen) Acid
    • Single Projectile Single Projectile
    • Straight Attack Straight Attack
    • No damage to all bloon types (unspecified damage) No Damage
    • Liquefying Glue (Deals 1 damage (3 damage for Ceramic) every 0.1s for up to glue duration, lasts 11 Liquefying Glue (1 damage per 0.1s, 3 Ceramic damage per 0.1s, all layers, lasts for 11s, 5.5s for blimps)
    • Slowdown (50% speed, regular bloons) Slowdown (50%)
  • Puddle:
    • Acid Type (pops Black, White, Purple, Lead, Frozen) Acid
    • Burst (unspecified variant) Burst
    • On-Track (unspecified variant) On-Track
    • Extra damage to all bloon types (2) Extra Damage (2)


Updated as of Version 43.0. Listed prices exclude external buffs, any sacrifices, and Monkey Knowledge.
[Module | Data] Purchase Sell
Costs Easy Medium Hard Impoppable Easy Medium Hard Impoppable
Upgrade (4-X-X) $4,250 $5,000 $5,400 $6,000 -
Total (4-0-0) $6,990 $8,225 $8,885 $9,870 $4,893 $5,758 $6,220 $6,909
Crosspath (4-1-0) $7,075 $8,325 $8,995 $9,990 $4,953 $5,828 $6,297 $6,993
Crosspath (4-2-0) $7,900 $9,295 $10,040 $11,155 $5,530 $6,507 $7,028 $7,809
Crosspath (4-0-1) $7,230 $8,505 $9,185 $10,205 $5,061 $5,954 $6,430 $7,144
Crosspath (4-0-2) $7,570 $8,905 $9,615 $10,685 $5,299 $6,234 $6,731 $7,480

This upgrade's prices (or included crosspath's prices) are affected by the following MK: BonusGlueGunnerIcon Bonus Glue Gunner, CheaperSolutionIcon Cheaper Solution, ComeOnEverybodyIcon Come On Everybody!, BetterSellDealsIcon Better Sell Deals



This upgrade deals decent damage to normal MOABs and Ceramics, as Glue Gunners with corrosive upgrades can now affect MOAB-class bloons. In general, Bloon Liquefier is in awkward position in the game because it tends to lack sufficient pierce compared to other competitors such as The Big One while only being slightly cheaper. The additional glue puddles dealing flat damage can be marginally useful in pre-Freeplay rounds for a little more DPS, especially when buffed by damage buffs such as from Alchemist, unlike most other Glue Gunners, as well as clearing out multitudes of already weakened bloons.


  • By itself, 4-2-0 Bloon Liquefier is usually better, as it has a lot more pierce. In a few select situations, 4-0-2 Liquefier can be used to damage blimps for longer periods, although Bloon Liquefier can easily destroy non-freeplay Ceramics anyway, which renders the extra glue lifespan and extra slowdown less useful for Bloon Liquefier alone.
    • The 4-0-X Bloon Liquefier essentially acts as an damage-oriented Bigger Globs Glue Gunner, so it is worth taking note that crosspathing variety is improved with this Tier 4 upgrade. Bigger Globs with Bloon Liquefier is basically +50% pierce, if not taking into account other pierce buffs.
  • Bloon Liquefier is capable of destroying a Round 40 MOAB on its own, but this does not necessarily mean it is reliable against MOAB-class bloons. Bear in mind that glue lasts half as long on MOAB-class bloons, so 4-X-0 Bloon Liquefier is only going to do a maximum of 110 damage to the MOAB until the glue wears off again after 11 seconds.
  • Because the glue applies a DoT with very fast ticking, it greatly benefits from debuffs like Embrittlement and Cripple MOAB, where the bonus damage will apply to every tick.
  • Unlike most Glue Gunners, a Bloon Liquefier greatly benefits from Alch buff, as this allows its puddles to do considerably more damage. Jar of Pickles could be useful if it’s all about maximising puddle damage, but this has a drawback of reducing the amount of Bloons affected by the powerful corrosion.
  • Unlike most Glue Gunners, First may be more handy for Bloon Liquefier when compared to the Strong targeting, as the Bloon Liquefier's acid puddles act as a large portion of its cleanup, although for dense Ceramic-specific situations, Strong is still optimal.

Version History[]

Balance Changes[]

Bloon Liquefier is much stronger than it was in BTD5 because of now hitting MOAB-class bloons, but remained outclassed by alternative effective combos. It has received some buffs in BTD6 history to make it more usable in a mid-game role and to compete with more popular mid-game options. It also received a pierce buff to make Path 3 crosspathing more practical in a real game scenario. It has also gained acid puddles from popped bloons, in efforts to smoothen progression into the popular The Bloon Solver's massive power increase.

Initial release (compared to BTD5)
  • BUFF Bloon Liquefier can now target MOAB-class Bloons, although they won't be slowed and glue lasts for half duration compared to normal bloons
  • BUFF Bloon Liquefier costs less ($12,500 → $7,000)
Many people seem to agree 5xx Glue is 'good', but simply outclassed (mainly by 5xx mortar at a similar price). This won't completely fix that, we hope to work on making the earlier stepping stone tiers a little easier to use and provide the 520 crosspath with a better niche by making Bloon Solver benefit from all pierce twice as much (which x2x provides).
~ Ninja Kiwi, referring to buffing Bloon Solver and its earlier stepping stone upgrades
  • BUFF Bloon Liquefier costs less ($7,000 → $6,500)
The Bloon Solver recently received a small functional rework buff, this follow-up buff will make the stepping stones to it a little easier on saving.
~ Ninja Kiwi
  • BUFF Bloon Liquefier costs less ($6,500 → $5,500)
Adjustments to top-path upgrades to make each step more noticeable. [...] We are still looking at future improvements here, including reworking the priority tree of glue stacks.
~ Ninja Kiwi
  • BUFF Bloon Liquefier pierce increased (1 → 2)
More tweaks with the intent of viable stepping stones toward The Bloon Solver. [...]
~ Ninja Kiwi
  • Change Description changed from "Liquefies Bloons by popping them 10x every second." to "Can glue one additional Bloon per shot and applies liquifying compounds that do 10 pops every second."
  • BUFF Bloon Liquefier costs less ($5,500 → $5,000)
  • BUFF 4-1-0 Bloon Liquefier (correctly) has more pierce.
Since glue gunners can't work together as we all want them to and we could not bite that off for this update, for now have decided to do more for the top and middle paths themselves.

Bloon Solver's single target power feels like it ramps slowly on larger targets, and while it is mainly a grouped cleanup, we decided to give a nudge here with bonuses to large targets to help with higher round falloff.

~ Ninja Kiwi, referring to Bloon Solver
  • BUFF Bloon Liquefier DoT deals +1 damage to ceramics
Glue Gunner base level doesn’t fit in as a starter placement, while not really changing that at all we feel for now if it was cheaper than $250 you'd be able to start with 2 dart monkeys & a glue on medium for more casual variety. [...] Bloon Solver appears to be in a fair state now but with low value save up into it from Dissolver & Liquifier, slight improvements have been made here to assist them in cleaning up in some cases it feels they should.
~ Ninja Kiwi
  • BUFF Bloon Liquefier ceramic bonus increased 1 → 2
  • Change Description changed from "Can glue one additional Bloon per shot and applies liquefying compounds that do 10 pops every second." to "Applies liquefying compounds that do 10 pops every second."
Our Glue rework last update wasn't quite ready soon enough to go through in depth balancing of how the new mechanics felt before release, but we still wanted to just get them out and see what people thought anyway, so this is mostly just a bit of catch up on that with fixes to crosspathing value.
~ Ninja Kiwi
  • BUFF Bloon Liquifier attack speed increased 1s → 0.75s. Does not affect The Bloon Solver.
The Bloon Solver’s rework has been very popular, however, we’d like to have a better lead up into the new mechanics by introducing this earlier at the tier 4 now.
~ Ninja Kiwi
  • BUFF Bloon Liquefier now drops puddles of acid on the track that deal 1 damage to affected bloons. Puddles last for 7.7s (16.8s with 4-0-2) but cannot hit targets that are already glued, and hit up to 3 bloons (4 with 4-1-0, 5 with 4-2-0).
    • Change Description also added "and drops powerful acid onto the track after destroying a Bloon." and replaced ending period with a comma.
This is not intended to be a significant nerf to the tower’s base game performance so we plan to keep an eye on the change; however the recent top path Glue Gunner changes where duplicating every high level glued Bloon into magnitudes more puddles due to the recurring children multiplication of pre-r80 Bloons. This caused performance issues and effectively broke the game in certain situations so we have limited these puddles to spawn from the first child of glued targets to keep the lategame performance unchanged but hopefully solve the root of this issue in the early game where the main attack is mostly enough to easily deal with all cleanup anyway.
~ Ninja Kiwi
  • NERF Bloon Liquefier’s puddles of acid now drop from only fully popped first bloon.
  • NERF Bloon Liquefier’s puddles of acid no longer innately affect Camo
Bloon Liquifier is not a great save-up into Bloon Solver, so buffing its puddles. [...]
~ Ninja Kiwi
  • BUFF Bloon Liquefier lingering puddle damage increased 1 to 2.
Increased duration has limited use on upgrades that completely destroy targets anyway, so a better crosspath benefit is being added onto 401 glue puddles. [...]
~ Ninja Kiwi
  • BUFF 4-0-1 Bloon Liquefier allows track puddles to last +1 round.

Bug Fixes and General Changes[]

Extra Notes (Version History)[]


Official artwork[]


  • When crosspathed with 4-0-1, there is a glob of yellow glue, even though it shoots green glue.
  • There was a bug in Version 23.0 where the 4-2-0 Bloon Liquefier with the "Splatty Glue" MK only has 8 pierce instead of the expected 9, as that MK grants +2 pierce for Glue Splatters. This was fixed in Version 24.0.