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Bigger shells deliver a bigger blast radius.
~ In-game description

Bigger Blast is the first upgrade of Path 1 for the Mortar Monkey in Bloons TD 6. It increases blast radius of the Mortar Monkey's explosions, from 20 to 28, and increases pierce from 25 to 45. If crosspathed with Signal Flare, the flare blast increases from 52 to 72 and decamo pierce from 80 to 100(?), while crosspathing with Blooncineration increases its wall of fire attack's pierce from 20 to 36 and slightly increases the radius of each blaze.

This upgrade costs $425 on Easy, $500 on Medium, $540 on Hard, and $600 on Impoppable.




Bigger Blast

The Mortar Monkey's Mortar now has a yellow line on the top and middle part of the barrel. These changes are consistent among crosspaths.

Bigger Blast increases the strength of explosions, increasing blast radius from 20 to 30, and pierce from 25 to 45. It also increases pierce and blast radius of Signal Flare's flares, and pierce and radius of Blooncineration's blazes.

Targeting Priorities[]

Mortar Monkey has only one target priority, "Set Target". This allows the Mortar Monkey to land shells within anywhere inside the target reticle. Tapping on the "Set Target" button prompts the player to change the target position of where the Mortar Monkey will land its shells. By default, once the Mortar Monkey is bought, the Mortar Monkey's target reticle is placed near the start of the first bloon track.

If Striker Jones's Level 7+ Target Focus ability is activated, all Mortar Monkeys are automatically set to Follow Touch / Follow Mouse temporarily, unless manually re-targeted via Set Target, and snap back to their old Set Target option once the ability is finished.

Full Popology[]

Updated as of Version 43.3
Base stats
  • Explosion:
    • Lobbed projectile, explosion type, targets at a custom-aimed location with deviation of 18, 0.5s deployment cooldown, 2.0s attack cooldown, 28 blast radius, 2 damage, 45 pierce.
Crosspathing interactions
  • 1-1-0: Explosion attack cooldown reduced from 2.0s to 1.5s
  • 1-2-0: Explosion attack cooldown reduced from 1.5s to 1.08s.
  • 1-3-0: Explosion attack cooldown reduced from 1.08s to 0.81s, specialized bloon properties added (Lead = +1, Ceramic = +3, Fortified = +1, MOAB-class = +1, stunned = +2), and damage type of Explosion changed from explosion to normal.
  • 1-4-0: Explosion attack cooldown reduced from 0.81s to 0.27s, specialized bloon properties expanded (unstunnable = +1). Bombardment reduces attack cooldown from 0.27s to 0.0645s and blast radius from 20 to 23.
  • 1-5-0: Explosion attack cooldown reduced from 0.27s to 0.0645s, specialized bloon properties improved (stunned = +8, unstunnable = +2), blast radius increased from 30 to 34.5.
  • 1-0-1: Explosion deviation radius decreased from 18 to 8.
  • 1-0-2: Explosion inflicts Burn that deals 1 damage per 1.25s for 3.75s.
  • 1-0-3: Explosion adds an additional Decamo Blast, with its blast radius increased from 52 to 72 and pierce from 80 to 100(?).
  • 1-0-4: Explosion inflicts Burn that deals 5 damage per 1.25s for 3.75s, and 15 damage per 1.25s for 3.75s versus MOAB-class.
  • 1-0-5: Explosion inflicts Burn that deals 5 damage per 0.75s for 3.75s, and 100 damage per 0.75s for 3.75s versus MOAB-class. Blaze radius increased and pierce increased from 20 to 36.
Monkey Knowledge Interactions

Attack Interactions[]

See also: Attack Interactions/Bloons TD 6/Military
Updated as of Version 41.2
Base attack(s)
  • Explosion:
    • Explosion Type (pops White, Purple, Lead, Frozen) Explosion
    • Area of Effect Area of Effect
    • Full Map Range (unspecified description of how the tower can attack beyond basic range) Full Range
    • Erratic Movement (small projectile deviation from reticle) Erratic Movement
    • Extra damage to all bloon types (2) Extra Damage (2)


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 (1-X-X) $425 $500 $540 $600 -
Total (1-0-0) $1,060 $1,250 $1,350 $1,500 $742 $875 $945 $1,050
Crosspath (1-1-0) $1,315 $1,550 $1,675 $1,860 $921 $1,085 $1,173 $1,302
Crosspath (1-2-0) $1,740 $2,050 $2,215 $2,460 $1,218 $1,435 $1,551 $1,722
Crosspath (1-0-1) $1,230 $1,450 $1,565 $1,740 $861 $1,015 $1,096 $1,218
Crosspath (1-0-2) $1,655 $1,950 $2,105 $2,340 $1,159 $1,365 $1,474 $1,638

This upgrade's prices (or included crosspath's prices) are affected by the following MK: MilitaryConscriptionIcon Military Conscription, AdvancedLogisticsIcon Advanced Logistics, BetterSellDealsIcon Better Sell Deals



Having a bigger blast radius helps the Mortar Monkey's explosions hit greater numbers of bloons per shot. It is especially useful when located onto small loops like the loops on In the Loop and large loops like the craters of Moon Landing and the large lake of toxic waste on Spillway. As a bonus, the Mortar Monkey gains much more pierce, perfect when there is a large crowd of bloons.


  • It is usually better to get Path 2 or Path 3 for the early-game, but Path 1 can be better if there is a good bend or loop around. But for mid-game, this upgrade is generally the better upgrade for Heavy Shells and Artillery Battery for the better hit consistency, even surpassing that for Increased Accuracy.
  • Certain cases call for the much greater pierce of Bigger Blast, such as in Race Events with Mortar starts. Also helpful when utilizing max pierce of Burny Stuff.

Version History[]

Balance Changes[]

So far, the only changes applied here are based on crosspathing changes. However, not adding Path 2 crosspath is buffed overall, with an almost negligible nerf to 1-2-0.

Initial release (compared to BTD5)
  • BUFF Bigger Blast cost decreased ($600 → $500)
  • BUFF Bigger Blast blast radius increased slightly
  • NERF Explosion random deviation radius increased (18 → 30).
  • BUFF Attack speed without Path 2 upgrades increased (2.2s → 2.0s).
  • BUFF Attack speed with Faster Reload increased (1.54s → 1.5s).
  • NERF Attack speed with Rapid Reload decreased (1.07s → 1.08s).
  • BUFF Reverted random deviation radius change.
  • BUFF Bigger Blast now increases Signal Flare decamo blast radius
We’re looking to shakeup mortar in a couple small ways this update, along with Striker Jones changes noted further on for ‘multi-mortaring’ synergy. From the base level Mortar has far more pierce than should ever be necessary at low rounds but doesn’t hit beefy enough for the low fire rate, so we are trading up some base pierce for damage, instead moving this lost pierce up into crosspath. [...]
~ Ninja Kiwi
  • BUFF Bigger Blast base damage increased (1 → 2)
  • BUFF Bigger Blast pierce bonus increased from +5 to +20
    • Note: This is an indirect buff to the main explosion, as pierce remains 45 while 0-x-x variants only have 25 pierce instead of 40.
  • BUFF Bigger Blasts further increases pierce of Blooncineration's "Wall of Fire"

Bug Fixes and General Changes[]

Extra Notes (Version History)[]


Official artwork[]


  • Bigger Blast is the most expensive T1 Mortar upgrade in this game.
  • When first released, Bigger Blast added a small pierce increase, but Version 39.0 changed it to provide almost double base explosion pierce.