Snap Freeze

"The tower freezes so fast the bloons pop once before freezing."

- Bloons TD 5 description

 is an upgrade for the Ice Tower that was introduced in Bloons Tower Defense 3. When a bloon is hit by the Ice Tower, it will pop a layer of that bloon and then freeze the layer below in the process. In BTD4, an Ice Tower with Snap Freeze appears identical to the regular Ice Tower, albeit with 3 additional Upgrade Marks by the side. In BTD5, the monkey's head gets a snowflake symbol.

Bloons TD 3
In Bloons TD 3 it is the 2nd upgrade of Path 2 for the Ice Tower, costing $245 on Easy, $295 on Medium and $315 on Hard.

Only a percentage of bloons may be damaged by Snap Freeze.

Bloons TD 4
In Bloons TD 4 it is the 3rd upgrade for the Ice Tower, costing $340 on Easy, $400 on Medium and $430 on Hard. This upgrade had been improved to pop all bloons in the Ice Tower's radius (other than White and Zebra Bloons), rather than popping only some bloons.

Bloons TD 5
In Bloons TD 5 it is the 2nd upgrade of Path 1 for the Ice Tower and also costs $340 on Easy, $400 on Medium, $430 on Hard and $480 on Impoppable.

It works very similar to its BTD4 counterpart, although this upgrade is along a different path to Permafrost.

Bloons TD 6
While this upgrade no longer exists in BTD6, it is worth a mention that the Ice Monkey now pops bloons without any upgrades. Ice Monkey, however, requires Cold Snap in order to pop Lead Bloons.

Trivia

 * This upgrade allows for the only way other than the Ice Fortress tier three, MIB, Viral Frost or an Absolute Zero to freeze a Zebra Bloon. If the player freezes a Rainbow Bloon with an Ice Tower with Snap Freeze, it will pop the Rainbow Bloon and out will come a frozen Zebra Bloon.
 * If the Ice Tower also has the Deep Freeze upgrade, it is possible to freeze White Bloons by using above method and popping a layer of the frozen Zebra Bloons with a tower capable of popping them.
 * This was the only upgrade for the Ice Tower that could pop Bloons, until the Ice Shards upgrade was implemented into BTD5.
 * In BTD3, this would only sometimes pop bloons.
 * In the sequels it follows, the Ice Tower will pop all bloons in its radius.
 * This upgrade can damage M.O.A.B. Class Bloons but can't freeze them in BTD5.