9-Inch Nails (BMC)

For other uses, see Oversize Nails (disambiguation).

9-Inch Nails

MultiplatformFlash

	Massive nails pop 8 bloons at once, including frozen bloons

Portrait of 9-inch nails
	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

Larger Service Area →

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. It increases the pierce of the Engineer from 3 to 8 and allows the Nails to pop Frozen 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
0-1	$900	$720	$1,150	$920
1-1	$1,400	$1,120	$1,600	$1,280
2-1	$1,800	$1,440	$1,950	$1,560
3-1	$2,600	$2,080	$2,700	$2,160
4-1	$6,100	$4,880	$5,700	$4,560