Cleansing Foam (BMC)

For other uses, see Cleansing Foam (disambiguation).

Cleansing Foam

MultiplatformFlash

Sprays foam that removes camo and regen, and pops leads.

The Engineer uses special dispenser to spray down the track with a cleansing foam that removes camo and regen properties. Also pops lead bloons.

Tower	Monkey Engineer — Path 1 — Tier 3
Cash cost	$800 (Multiplatform version) $750 (Flash version)
Research
Requirements	City Level 12 Camo Countermeasures built
Cost	7,500 (Multiplatform version)  7,500  20 (Flash version)
Time	2 days
XP given	500

← Fast Engineering

Bloon Trap →

Cleansing Foam is the Monkey Engineer's path 1 tier 3 upgrade in Bloons Monkey City. It adds an additional attack that places foam on the track every 2.1 seconds. The foam removes Camo and Regrow properties from any Bloons it touches, and also deals 1 damage to Lead Bloons. The foam can affect up to 30 Bloons, or else it expires after 8.2 seconds or at the end of each round. It has slightly different behaviors between versions:

• On the Flash version of Bloons Monkey City, its pierce is infinite, meaning it will never expire when hitting Bloons.
• On the multiplatform version of Bloons Monkey City, there is an bug when buffed by a Monkey Intelligence Bureau that enables the foam to pop all Bloon types, including MOAB-Class Bloons.

Stats

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Costs and sell values

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

Tiers	Mobile version		Flash version
	Cost	Sell value	Cost	Sell value
3-0	$2,150	$1,720	$2,000	$1,600
3-1	$2,600	$2,080	$2,700	$2,160
3-2	$3,250	$2,600	$3,350	$2,680

Strategy

In the Flash version of Bloons Monkey City, Cleansing Foam is a very consistent way to neutralize any Camo, Regrow, and Lead threat, being better than any other alternative in the entire game. Only a single foam is necessary, making it much cheaper than a Radar Scanner Village, however since the foam is removed on each round it may still leak strays and placing a second Cleansing Foam still makes it cheaper by a slight margin. The ability to prevent all of these Bloon types makes it valuable in Monkey v Monkey, where multiple assaults can be placed. It is not always necessary to place the Engineer to target the foam in a single area, but to simply keep it away from other tracks so it can target the beginning of the lane.

On the multiplatform version of Bloons Monkey City, this tower is a lot weaker due to re-hits on the same Bloon eating up the pierce on foam puddles way faster and should instead be used as (if not expensive) damaging puddles with the MIB damage type glitch.

Crosspathing with Larger Service Area actively hinders the effectiveness of the foam, as it increases the range at which foam can be placed, while the foam wants to be placed in a single chokepoint. 9-Inch Nails and Larger Service Area are also far too expensive, and with limited Engineers per city there's no point to increasing their ranges.

Trivia

• This is the only decamo upgrade that requires building Camo Countermeasures before it can be researched.