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Shoots freezing bombs at Bloons over long range.
~ In-game description

Cryo Cannon is the third upgrade of Path 3 for the Ice Monkey in Bloons TD 6. Instead of freezing cold radial blasts, the Ice Monkey utilizes an ice cannon that shoots freezing snowballs. Snowballs are shot at every 1.2s (instead of 2.4s) and deal increased damage (from 1 to 2). However, each shot has less pierce (30 instead of 40) and a smaller blast radius (20 blast radius, as opposed to 27 via radial freeze blasts). It possesses significantly greater range, allowing the Ice Monkey to shoot much further away, increasing from 27 to 46.

This upgrade costs $1,910 on Easy, $2,250 on Medium, $2,430 on Hard, and $2,700 on Impoppable.



The Ice Monkey gains grey earmuffs and a grey wristband. Its right hand is replaced with a cannon-like projectile launcher encased in ice. It retains the navy-blue sunglasses and grey gloves gained from Re-Freeze.

An Ice Monkey with Cryo Cannon receives a new idle animation. When idle, the monkey may occasionally scratch their head.



Targeting Priorities[]

Cryo Cannon receives basic targeting priorities like most other towers do, converting from a zone-based radial attack into a standard straight movement projectile.

  • 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.

Unlike most camo-detecting crosspaths, adding Cold Snap (which detects camo) does not add Camo Prioritization.


Updated as of Version 32.0. Listed prices exclude external buffs, any sacrifices, and Monkey Knowledge.
Purchase Sell
Costs Easy Medium Hard Impoppable Easy Medium Hard Impoppable
Upgrade (X-X-3) $1,910 $2,250 $2,430 $2,700 -
Total (0-0-3) $2,675 $3,150 $3,405 $3,780 $1,873 $2,205 $2,384 $2,646
Crosspath (1-0-3) $2,800 $3,300 $3,565 $3,960 $1,960 $2,310 $2,496 $2,772
Crosspath (2-0-3) $3,095 $3,650 $3,945 $4,380 $2,167 $2,555 $2,762 $3,066
Crosspath (0-1-3) $2,865 $3,375 $3,650 $4,050 $2,006 $2,363 $2,555 $2,835
Crosspath (0-2-3) $3,160 $3,725 $4,030 $4,470 $2,212 $2,608 $2,821 $3,129

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



Cryo Cannon has a limited niche for freezing bloons that extends its coverage at the cost of less pierce and smaller blast radius. By converting the Ice Monkey's normal radial freeze attacks into projectile-based attacks, it is useful in concept but very limited in practice, and is mainly used for countering Super Ceramics. Besides being a stepping stone for Icicles and Icicle Impale, it can be used as a budget Bloon Impact for defenses that are able to pop Frozen Bloons. In spite of its comparatively lower pierce and blast radius, it attacks considerably faster than Bloon Impact with similar range but much cheaper.

Due to the nature of aim-based projectiles in general, Cryo Cannon naturally performs best along straight lines rather than around curves. Like the popular 0-1-2 Re-Freeze Ice Monkeys, it works the best against Ceramics and Super Ceramics. But due to the reduced pierce and blast radius, the Cryo Cannon upgrade should be reserved in situations where the quick-attacking freeze at long ranges is vital. The higher damage can help in combination with its extensive freeze coverage.


  • Multi-lane maps such as High Finance, Flooded Valley, and Muddy Puddles are among many of the maps where Cryo Cannon may perform better than an X-X-2 Ice Monkey would.
  • Besides catching Super Ceramics easier through its new projectile-based attack, it is a suitable choice for stopping waves of grouped bloons.
  • Since the Cryo Cannon upgrade is at least twice the price of a single 0-0-2 Ice Monkey and just under the price of two 0-1-2 Ice Monkeys, in most situations it would be preferred to have more 0-1-2 Ice Monkeys. If there is more than one section that needs to be covered by base Ice Monkeys, it is still worth trying Cryo Cannon as an alternative.
  • With Cryo Cannon, there is more control over what nearby bloons should or should not be frozen. Just like conventional towers, Cryo Cannon uses the four standard target priorities: First, Last, Close, Strong.
    • For most occasions, First is the best option, followed by Last and Strong. There is little reason to set it on Close, as 0-1-2 Ice Monkeys are more cost-efficient at close-range freezing anyway.
  • Cryo Cannon is one of the few Primary Monkeys that are able to reach bloons on Flooded Valley without the use of land platforms (i.e. from Pontoons and Arctic Wind ice platforms). Place the Cryo Cannon on one of the rocks on the ground side closer to the bloon path, and also place a 4-X-X Monkey Village nearby the Cryo Cannon to give it even better range.
  • If using Cryo Cannon as purely a stalling tower, there are some cases where crosspathing with Path 1 is superior over Path 2, but generally Path 2 is the better option.
    • One 1-0-3 or 2-0-3 Cryo Cannon set on Strong can ensure that all three Ceramic waves spawning on Round 63 will become affected by Permafrost effect. Alternately, set it to Last to hit the earliest Ceramics, specifically Super Ceramics, to set the Permafrost effect sooner.
    • Otherwise, the 0-1-3 Cryo Cannon is better if utilizing it for pure damage, or freezing dense groups of Super Ceramics. Deep Freeze's freeze penetration is nearly useless, but the marginal freeze duration bonus can be handy.
  • Cryo Cannon works best as a budget Bloon Impact, except without white-popping power instead of black-popping power. It is much faster than Bloon Impact but has less blast radius and lower pierce. As of Version 25.0, due to Bloon Impact's damage type nerf, Cryo Cannon can outclass Bloon Impact in terms of taking down Super Ceramics, and it can even be upgraded to Icicles to counter the white immunity.
  • It can be combined with Downdraft, a global-ranged blowback, to further minimize the threat of Super Ceramics by blowing back bloons that aren't yet frozen.

Version History[]

Cryo Cannon overall has been buffed, with a larger blast radius and slightly lower price being the most significant changes for its viability as a projectile-oriented freeze tower. Ninja Kiwi stated in their Version 21.0 balance changes that Cryo Cannon projectiles had too little blast radius in exchange from a close-ranged area-of-effect, and stated their intention to transform it into a hybridized damage + freeze tower.

The buffs given to Cryo Cannon makes it an effective long-ranged "stun" tower, adding competition against other ranged stuns such as Bloon Impact. Alongside previous upgrade price nerfs, its own upgrade price got nerfed too in Version 28.0.

  • Buff Cryo Cannon pierce increased (20 → 30).
    • Despite what the patch notes mentioned regarding Cryo Cannon pierce not being affected by the change, Cryo Cannon actually received a pierce buff from 20 to 30. This has also affected its subsequent upgrades.
  • Change Cryo Cannon target priority now defaults to First instead of Close.
While Icicles is quite fun for midgame cleanup, we acknowledge points raised on Cryo Cannon trading off its freeze prowess too quickly when the smaller freeze area even with such a fast rate increase still overall makes it struggle to slow as effectively. To counter this a little we have doubled the freeze radius of Cryo Cannon, but also increased damage of both the Ice Balls & Icicles to highlight more the intention of this path swapping to a damage hybrid earlier.
~ Ninja Kiwi
  • Buff Cryo Cannon blast radius increased (10 → 20)
  • Buff Cryo Cannon now deals extra damage (1 → 2)
Ice Monkey power is currently too bottom heavy and mid-to-higher tiers are neglected, so some tweaks to mid-tier upgrades have been made.
~ Ninja Kiwi
  • Buff Cryo Cannon price decreased ($2000 → $1750)
[...] Additionally some smaller price nerfs have been made along the lower tiers of bottom path as each of these upgrades has been standing out a little much.
~ Ninja Kiwi
  • Nerf Cryo Cannon price increased from $1750 → $1950
Ice monkey Enhanced Freeze is too good at low tiers, allowing full stunlock of ceramics for very cheap, as the fire rate increase alone of this Enhanced Freeze is a powerful addition most of the increased freeze duration has been moved up as it makes more sense to have duration with the currently less desirable T2 Deep Freeze. Permafrost was previously reduced to a lower price than we’d like to try increase desirability of this crosspath, but as the reworks to metal freeze have had more success there in pulling this path ahead we want to add a little back on here. Cryo Cannon has now been overperforming compared to any towers that perform similar roles with either of these crosspaths so is also seeing a general reduction.
~ Ninja Kiwi, referring to all Ice Monkey upgrades related to Cryo Cannon
  • Nerf Cryo Cannon attack delay increased from 1s -> 1.2s
  • Nerf Cryo Cannon price increased from $1950 -> $2250


Official artwork[]



  • Prior to the Version 23.0 Cryo Cannon price buff, the Cryo Cannon upgrade costed as much as the Ice Shards upgrade did in BTD5. Interestingly, the BTD5 Absolute Zero upgrade following the BTD5 Ice Shards upgrade also costed the same, at a cost of $2,000 on Medium. And similarly, the price of Icicles was also the same price too.