Spike Factory (BTD4)

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

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Spike Factory
Mobile Generates piles of road spikes around the track automatically. Leftover spikes disapear at the end of each round. Cost $595 — Easy $700 — Medium $755 — Hard

The Spike Factory is a tower in Bloons TD 4.

Upgrades

Increased Production
	Makes the factory produce spikes much faster Easy Medium Hard $595 $700 $755

Bigger Stacks
	The factory creates double size spike stacks Easy Medium Hard $510 $600 $650

White Hot Spikes
	White hot spikes can pop frozen and lead bloons. Easy Medium Hard $300 $350 $380

Spike Storm
	Every 15 seconds the factory generates a storm of short lived spikes filling up the whole track. Easy Medium Hard $5,950 $7,000 $7,560

Costs and sell values

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