Bloons Wiki
Bloons Wiki

Shoots 16 darts per volley, and twice as fast.
~ In-game description

Operation: Dart Storm (sometimes shortened to ODS, O:DS, or Dart Storm) is the fourth upgrade on the first path for the Monkey Ace in Bloons TD 6. It shoots 16 darts per volley and shoots darts and anti-MOAB missiles (from Fighter Plane) twice as fast. Volleys of darts are shot every 0.63s instead of 1.26s, while the twin anti-MOAB missiles are shot every 2.0s instead of 4.0s. Additionally, anti-MOAB missile explosions deal 24 damage per missile instead of 18, and retains 4 pierce.

It costs $2,550 on Easy, $3,000 on Medium, $3,240 on Hard, and $3,600 on Impoppable.



Operation: Dart Storm combines the potential of extra darts with improved anti-MOAB missiles, thereby making the Monkey Ace more reliable against both bloons and MOAB-class bloons. This makes it a decent upgrade for the mid-game, chipping down blimp health while also providing cleanup against bloons. Combining with Berserker Brew or Stronger Stimulant improve its dart damage to bloons by a large margin, thereby improving its overall reliability for the mid-game.


  • This upgrade is useful for wiping out many bloons on screen while also being a great option for beating MOAB-class bloons, especially for earlier rounds. On its own, it can wipe out the outer layers of regular MOABs and Fortified MOABs before Round 81 with ease.
  • The best crosspath is the 4-0-1 ODS, or 4-0-2 if there is exceptionally good central coverage on the given map. 4-2-0 is useful if camo detection is required, since ODS cannot detect camo without support unlike in BTD5 when it was the upgrade after Spy Plane.
  • Just like many high-projectile towers, pair with Berserker Brew or Stronger Stimulant to optimize the power of each of the ODS's radial dart attacks.
  • Do not rely on a 4-2-0 Operation: Dart Storm to handle Camo Leads, as pineapples from the Exploding Pineapple upgrade are not deployed twice as fast and due to the random nature of pineapples in general.

Version History[]

Operation: Dart Storm hasn't changed very much since it was first released, since it already attacks anti-MOAB missiles fast enough to take down early MOABs with ease, but it is overall a little weaker versus single-target blimps. It also got indirectly buffed by a base Monkey Ace dart projectile size buff.

  • Nerf Fighter Plane anti-MOAB missile attack speed decreased (every 1.5s → 2.0s).
  • Buff Fighter Plane anti-MOAB missile pierce increased (1 → 4).
  • Nerf Fighter Plane anti-MOAB missile deals less damage (25 → 18).
  • Buff Monkey Ace dart projectile size increased (2 → 3).
As Dart Storm currently feels like a lossy stepping stone the damage has been increased.
~ Ninja Kiwi
  • Buff Operation: Dart Storm homing missile damage increased from 18 -> 24
Monkey Ace has had an overall rework to a lot of different upgrades in order to highlight the x1x Exploding Pineapples upgrade as a buff to all explosives, [...]
~ Ninja Kiwi, referring to Exploding Pineapples crosspathing buff
  • Buff 4-1-0 Dart Storm missiles pierce increased from 4 -> 6
  • Buff 4-1-0 Dart Storm missiles radius increased from 30 -> 34.5
More of a straight quality of life, Ace has gained a new special toggle button to allow it to turn back and fly in reverse on any selected flight pattern. [...]
~ Ninja Kiwi, referring to Reverse Flight
  • Buff Monkey Ace can now toggle flight direction for any pattern.


Official artwork[]


  • The name of the upgrade is likely to either be a reference to Operation: Dark Storm or Operation: Desert Storm.
  • The plane looks similar to the B-2 Spirit Bomber.
  • The Operation: Dart Storm upgrade was formerly the fourth sequential upgrade in BTD4, the third upgrade of Path 2 for BTD5, and now is back to being the fourth upgrade of Path 1 in BTD6.
  • Operation: Dart Storm is the 51st upgrade to be on the official community 2MPC challenges.
  • Although not very useful, Operation: Dart Storm does not double the rate of pineapples dropping via the Exploding Pineapple upgrade.
  • Operation: Dart Storm is overall more expensive in BTD6 than in BTD5 and lacks built-in camo detection. However, darts also attack twice as fast and already comes with the Rapid Fire upgrade.