Frozen Bloons grow sharp icicles that can pop Bloons that touch them.
~ In-game description

Icicles is the Tier 4 upgrade on Path 3 for the Ice Monkey in Bloons Tower Defense 6. It costs $1,700 on Easy, $2,000 on Medium, $2,160 on Hard, and $2,400 on Impoppable.

This upgrade cause Bloons frozen by the Ice Monkey to grow icicles. These icicles pop one layer off any Bloon that touches them, for up to 3 bloons, similar to Road Spikes. The icicles that form on bloons are considered sharp, allowing the popping of White Bloons and Zebra Bloons but not Lead Bloons.


  • Icicles is relatively useful for thinning out bloon rushes slightly. Alongside being a stepping stone to the much more powerful Icicle Impale, it serves as a helpful tower at decreasing the density of bloon rushes.



  • There is currently a bug where the icicles from the Icicles upgrade do not count towards the Damage Count. The same bug occurs for Icicle Impale.
    • This has since been fixed at a later update.
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