Sentry Gun (Battles)

For other uses, see Sentry Gun (disambiguation).

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Sentry Gun

Multiplatform

	Creates temporary sentry guns and deploys them nearby.

Tower		Path	Tier
Monkey Engineer		1	1
Cost	$500

Fast Engineering →

Sentry Gun is the Monkey Engineer's path 1 tier 1 upgrade in the mobile version of Bloons TD Battles.

Costs and sell values

Tiers	Cost	Sell value
1-0	$950	$760
1-1	$1,400	$1,120
1-2	$1,600	$1,280
1-3	$2,150	$1,720
1-4	$7,350	$5,880

Update history

For a complete list of Monkey Engineer changes, see Update history:Monkey Engineer (Battles).

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Version 4.6

1-2

•  Sentry spawner: deployment range reduced ― 195 units → 162.5 units

Version 4.9

•  Overall cost reduced by $50 (due to cost changes for previous tiers)

Version 6.9

•  Sentries can now overlap other towers

1-3, 1-4

•  Sentry: attack cooldown reduced ― 0.59s → 0.53s

Version 6.11

•  Overall cost increased by $50 (due to cost changes for previous tiers)