9-Inch Nails (BMC)

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9-Inch Nails

MultiplatformFlash

	Massive nails pop 8 bloons at once, including frozen bloons

Portrait of 9-inch nails
File:BTD5F upgrade NineInchNails.svg	Engineer's nailgun upgrades to shoot massive 9-inch long nails that can pop 8 bloons at once including frozen bloons

Tower		Path	Tier
Monkey Engineer		2	1

Upgrade cost		$450 (Multiplatform version) $700 (Flash version)
Prerequisites		City Level 5
Research cost		250
Research time		15 minutes
XP for researching		25

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9-Inch Nails (parsed 9-inch nails in the Flash releases, except in the upgrades menu) is the Monkey Engineer's path 2 tier 1 upgrade in Bloons Monkey City.