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Bloons get pushed backwards or slowed after each hit.
~ In-game description

Knockback is the first upgrade of Path 3 for the Super Monkey in Bloons TD 6. It adds knockback to every attack, allowing Super Monkey projectiles to push back or slow down bloons with each hit. It will push non-heavy bloons (i.e. not multi-HP Bloons, Lead, Ceramic, or MOAB-class) backwards by 25%, and slow down Leads and Ceramics (including their fortified variants) by 60%. MOAB-class bloons are slowed by 30% (except BADs and Bosses, which cannot be slowed at all). The knockback effect lasts for 0.1s per hit.

This upgrade has a unique interaction with the Tech Terror's Bloon Annihilation, allowing it to knock back any survivors of the ability at 25x speed for 2 seconds.

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



Knockback bloons

Knockback Super Monkey knocking back bloons

This upgrade adds a yellow stripe on Super Monkey's head. The yellow stripe remains consistent among its crosspaths, although for Sun Avatar and Sun Temple the stripe becomes a single central crest.

This upgrade causes all attacks by the Super to inflict knockback for 0.1 seconds, pushing normal bloons back at 25% speed, slowing leads and ceramics by 60%, and slowing MOABs by 30%.

If crosspathed with Tech Terror, the Bloon Annihilation ability will knock back any survivors of the damage.

Targeting Priorities[]

Knockback targets bloons using the standard targeting priorities. It shoots straight movement projectiles.

  • First: Targets the first bloon visible within its range.
  • Last: Targets the last bloon visible within its range.
  • Close: Targets the closest bloon visible within its range.
  • Strong: Targets the strongest bloon visible within its range.

The Super Monkey can access the Camo Prioritization targeting priority if given the Ultravision crosspath, which when set allows it to prioritize Camo Bloons before any other bloon type.


Updated as of Version 43.0. Listed prices exclude external buffs, any sacrifices, and Monkey Knowledge.
[Module | Data] Purchase Sell
Costs Easy Medium Hard Impoppable Easy Medium Hard Impoppable
Upgrade (X-X-1) $2,550 $3,000 $3,240 $3,600 -
Total (0-0-1) $4,675 $5,500 $5,940 $6,600 $3,273 $3,850 $4,158 $4,620
Crosspath (1-0-1) $6,375 $7,500 $8,100 $9,000 $4,463 $5,250 $5,670 $6,300
Crosspath (2-0-1) $8,500 $10,000 $10,800 $12,000 $5,950 $7,000 $7,560 $8,400
Crosspath (0-1-1) $5,950 $7,000 $7,560 $8,400 $4,165 $4,900 $5,292 $5,880
Crosspath (0-2-1) $7,565 $8,900 $9,610 $10,680 $5,296 $6,230 $6,727 $7,476

This upgrade's prices (or included crosspath's prices) are affected by the following MK: BetterSellDealsIcon Better Sell Deals



Knockback allows the Super Monkey to inflict knockback effects onto affected bloons, giving defenses more time to destroy the affected bloon(s), especially for the Super Monkey itself. It serves highest value against stronger bloons such as the early Round 40 MOAB. Also, it transitions well to the Ultravision upgrade, which provides natural camo detection.


  • One 0-0-1 Super Monkey can be used to slow the MOAB on Round 40, including on Alternate Bloons Rounds. Range upgrades with 0-1-1 and 0-2-1 not only make the Super find more opportunities to slow down the MOAB, its extra pierce also lets it knockback Ceramics more efficiently too.
  • When looking for reliable sources of knockbacking, it is worth knowing how each of these cross upgrades interact.
    • 3-0-1 Sun Avatar can knockback up to 6 bloons per sunbeam, 3 sunbeams per shot, and at double attack speed. Additionally, it can pop Leads but not Purples (unless Strike Down the False MK is enabled). It has the default Super Monkey range, though its range could be further increased with the upgrade Ultravision.
    • 0-3-1 Robo Monkey can knockback up to 6 bloons per dart from its 2 separate arm attacks. It can pop Purples but not Leads. It has good range, and it can be further improved with the Ultravision upgrade.
    • 0-0-3 Dark Knight can knockback up to 4 bloons per monkey-rang, can deal +2 damage to MOAB-class, and it can be crosspathed with other paths for additional benefit, preferably Path 1 with the double attack speed and +1 pierce.
  • As of Version 12.0, the nerf to the knockback towards Ceramics makes it difficult to stall Super Ceramics in place. In fact, the new knockback effect to Ceramics is now just a hefty slowdown, similarly to MOAB-class bloons but about twice as strong.

Version History[]

Balance Changes[]

Appears to be nerfed in attempt to balance out Path 3 crosspathing, more specifically with Sun Avatar.

  • NERF Knockback has decreased knockback for Leads, Fortified, and Ceramics (-100% → -60%). Upgrading to Dark Knight restores it completely.
    • Note: Version 28.0 also nerfed Dark Knight from -100% speed reduction to -90%, requiring Dark Champion to fully restore that amount.
  • BUFF Knockback now allows Tech Terror's annihilation ability to knock back surviving targets
Super Monkey projectiles already travel most the map length so that total distance is being reduced and adding back via the range-focused middle crosspath. [...]
~ Ninja Kiwi
  • NERF Affected by Super Monkey base projectile speed nerfs

Bug Fixes and General Changes[]

Extra Notes (Version History)[]


Official artwork[]


  • This upgrade is the only upgrade below Tier 3 that costs exactly $3,000 on Medium for the upgrade alone.
    • The Knockback upgrade is also the most expensive of all Tier 1 upgrades in the game.
  • This upgrade costs the same as the Super Monkey did in BTDB Mobile since Version 4.6. Likewise in BTD6, Laser Blasts now costs the same as the Super Monkey does in BTD6.