Tier 1 upgrade
Barbed Darts
Barbed Darts raises Monkey Sub dart pierce from 2 to 5 and boosts submerged pulses by 50 pierce. Early-game use and when to crosspath it.
Sub's darts can pop an additional 3 bloons each. Enhances pierce of other weapons.
Stats
Main attack
- Damage
- 1
- Pierce
- 5
- Attack speed
- 0.75s
- Range
- 42
How to use Barbed Darts
Barbed Darts adds 3 pierce to the Monkey Sub's darts, taking them from 2 to 5. With Airburst Darts the bonus goes to the mini-darts instead of the main dart. On a submerged Sub (Submerge and Support and above) it adds 50 pierce to the de-camo pulse, and on Bloontonium Reactor and Energizer to the damage pulse as well.
When to buy it
A 0-1-1 Sub with Twin Guns is a fairly strong early-game tower, since it fires fast and each dart now hits several Bloons. Still, a single Airburst Darts Sub is far more powerful for the money, especially with Advanced Intel, so most players skip straight to the bottom path for early defense.
As a crosspath it has a few niches:
- 4-1-0 Bloontonium Reactor in Races, where the extra pulse pierce matters.
- Any build that needs Heat-tipped Darts for built-in Lead popping.
- It works on tier 3+ bottom path Subs, but they usually prefer Advanced Intel, which reaches Bloons sooner and works better with outside buffs.
It is also the first step to Ballistic Missile, First Strike Capability and Pre-emptive Strike.
Is it worth it?
Mostly as a stepping stone. For early damage, Airburst Darts is the better buy.

















