Ice Monkey

"Freezes nearby bloons with every pulse. Frozen bloons are immune to anything sharp."

- BTD4 Description

This tower is called Ice Tower in BTD1 and BTD4. It is called Ice Ball in BTD2 and BTD3. The Ice Tower freezes bloons for roughly 1 second before any upgrades and 2 1/2 after. It has a short range when not upgraded, but is still effective at delaying bloons. It is completely ineffective against White Bloons and Zebra Bloons as they are immune.

Frozen bloons cannot be popped by sharp objects, and must be exploded or "vaporized" using a tower such as the Cannon, Super Monkey with Laser Vision, or sunrays shot by a Sun God. The M.O.A.B. and B.F.B. are immune to the Ice Tower as well.

The ice tower is a very useful tower because of its abilites once it has been upgraded to arctic wind. In the higher rounds, it is recommended to have more than two arctic winds.

Putting an ice tower close to a monkey apprentice upgraded takes away the ice towers abilites due to the monkey apprentice's whirwind attack.

Fire rate: 12 shots per minute

Bloons TD4 Hotkey: I (Uppercase 'i')

Cost: 380

Long Freeze Time

 * Cost 450

Wide Freeze Radius

 * Cost 300

Improved Ice Tower

 * Increased freeze time and attack radius.
 * Cost 225

Permafrost

 * Slows Bloons Down even after they thaw out!
 * Cost 100

Snap Freeze

 * Freezes so violently that Bloons will pop before freezing!
 * Cost 400

Arctic Wind
(Note: When upgraded to Arctic Wind, Bloons that are in the Ice Tower's attack radius are slowed down 66%.)
 * Extreme cold slows down anything that comes near the Ice Tower.
 * Cost 6,000

(Total Selling Price: 5,684)

TABLE BASED ON iPHONE VERSION - Please add other versions to table

Trivia

 * Besides the Monkey Ace, the Ice Tower is the only tower with an idle animation (which is the snow around it).
 * After the Ice Tower gets upgraded to Arctic Wind, then it is called the advanced Ice Tower.
 * In Bloons Tower Defense 4, it is the only tower that does not change it's appearance at all until it is upgraded to the fourth upgrade.