Spike Factory (BMC)

Spike Factory iterations: BTD4 • BTD5 • Battles • BMC • BTD6 • Battles 2

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Spike Factory

MultiplatformFlash

	Each round generates piles of road spikes that can pop 5 bloons each.

	Generates piles of road spikes on bits of nearby track. Each pile can pop 5 bloons, and unused spikes disappear at the end of each round.

Cost	$825
Hotkey	M
Favoured on	—
Restricted on	Desert Terrain, High Desert Terrain

My Monkeys bio
Description	Spike Factories are tailor made for guarding exits but can be used anywhere. Powerful upgrades include: White Hot Spikes, Spiked Ball Factory, MOAB-SHREDR, Spike Storm.
Strengths	Never misses; hits camo
Weaknesses	Fast bloons, multiple paths
Occupies	Spike Factory Warehouse
Upgrades	—

The Spike Factory is a tower in Bloons Monkey City. It is available to unlock after the player reaches City Level 5.

It dispenses spike piles onto random areas of track. Spike piles each have 5 pierce, with a visual representation of pierce based on pierce remaining. Spikes last up to 70 seconds or 1 round, whichever comes first. It can be improved to strengthen each spike pile into spiked balls and mines, or attack significantly faster and disperse MOAB-shredding spikes throughout all paths.

Upgrades

MultiplatformFlash

Path 1

Bigger Stacks Cost: $700
	Generates larger piles of Spikes per shot.

White Hot Spikes Cost: $900
	Cuts through lead like a hot spike through... lead.

Spiked Ball Factory Cost: $2,400
	Produces sharp spiked balls that do extra damage to ceramics.

Spiked Mines Cost: $14,000
	Spiked balls explode when they lose all their spikes.

Path 2

Faster Production Cost: $800
	Increases the rate of Spike production.

Even Faster Production Cost: $1,250
	Rate of spike production increases even more.

MOAB-SHREDR Spikes Cost: $3,000
	Super-Hard-Rending-Engine-Driven-Razors shred MOAB class bloons.

Spike Storm Cost: $6,500
	Ability: Lays down a thick carpet of Spikes over the whole track.

Path 1

Bigger Stacks Cost: $700
	Generates larger piles of spikes per shot.

White Hot Spikes Cost: $900
	Cuts through lead like a hot spike through... lead.

Spiked Ball Factory Cost: $2,400
	Modified to produce heavy but viciously sharp spiked balls instead of regular spikes. Do extra damage to ceramic bloons.

Spiked Mines Cost: $14,000
	Rigged with heavy explosives, the spiked balls are set to go off when they lose all their spikes.

Path 2

Faster Production Cost: $800
	Increases the rate of spike production.

Even Faster Production Cost: $1,250
	By adding sprockets, dongles and widgets, the rate of spike production increases even more.

MOAB-SHREDR Spikes Cost: $3,000
	Super-Hard-Rending-Engine-Driven-Razors are specially engineered to really hurt MOAB-class bloons.

Spike Storm Cost: $6,500
	Lays down a thick carpet of spikes over the whole track.

Monkey Knowledge

Level	Mobile description	Flash description
1	Each pile contains 1 more spike	+1 spike per pile
2	Base cost and all upgrade costs are 3% cheaper	Base cost and all upgrade costs 3% cheaper
3	MOAB-SHREDR spikes deal 20% more damage to MOAB-class Bloons	MOAB-SHREDR spikes deal 20% more damage to MOAB-class
4	Spiked Balls deal 3 more damage to Ceramic Bloons	Spiked Balls deal +3 damage to Ceramics
5	Spike Storm cooldown decreased by 5 seconds	Spike Storm cooldown decreased by 5 seconds
6	Each pile contains 2 more spikes	+2 spikes per pile
7	Base cost and all upgrade costs are 6% cheaper	Base cost and all upgrade costs 6% cheaper
8	MOAB-SHREDR spikes deal 40% more damage to MOAB-class	MOAB-SHREDR spikes deal 40% more damage to MOAB-class
9	Spiked Balls deal 4 more damage to Ceramic Bloons	Spiked Balls deal +4 damage to Ceramics
10	Spike Storm cooldown decreased by 7 seconds	Spike Storm cooldown decreased by 7 seconds
11	Each pile contains 3 more spikes	+3 spikes per pile
12	Base cost and all upgrade costs are 9% cheaper	Base cost and all upgrade costs 9% cheaper
13	MOAB-SHREDR spikes deal 60% more damage to MOAB-class	MOAB-SHREDR spikes deal 60% more damage to MOAB-class
14	Spiked Balls deal 5 more damage to Ceramic Bloons	Spiked Balls deal +5 damage to Ceramics
15	Spike Storm cooldown decreased by 8 seconds	Spike Storm cooldown decreased by 8 seconds

Strategy

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Spike Factory is a decent way to protect exits against stray Bloons, especially in Monkey vs Monkey and when delaying the free boost of Golden Egg Scrambler, but will struggle against large groups. Do not rely on Spike Factory as the primary defense, as it will fall apart once the Ceramic rushes on as low as Round 6 arrive (Round 4 on Monkeys From Space); instead, Spike Factories should only be used as secondary defense. Early on, do minimal investment, with one or two 0-0 Spactories and upgrade to T1 upgrades if needed; T2 is too inefficient.

Spike Factory becomes considerably better with MK for both tanking Bloons and for MOAB-class damage (with MOAB SHREDR and Spike Storm). After gaining flat pierce MK, multiple base Spike Factories become more efficient against leaks.

Its grouped weaknesses are reduced significantly with both T4 upgrades, though Spiked Mines is useless in the multiplatform version. However, Spiked Ball Factory remains an effective tank against Bloons when transitioning into the wincon.

Gallery

For more Spike Factory images, see Gallery:Spike Factory.

Screenshots

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Assets

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  Mobile portrait
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  Mobile icon