Guard Bloon

Guard Bloons are Green Bloons coated in a tough iron layer. They start appearing on Round 57. They do have some abilities and take 20 hits to pop the Iron layer. But beware, only explosives, or heat can destroy it. It spawns one Green Bloon, and moves as fast as a Red Bloon until popped into a Green.

Abilities
Shunned: One tower will be shunned, ignoring all damage done by that tower. (The tower even gets chains around it, and a golden lock attached to it!). This lasts eight seconds, and has a cooldown of ten seconds.

Speeding: Reduces the attack rate of a tower by 1.6 seconds(stops some towers altogether). It lasts for 5 seconds. This has a cooldown of 4 seconds.