H.A.S.T.E

Bloons simply decided that a blimp higher in the air would avoid more bad things and they added a anti missile gun on the bottom to add to the ability to avoid bad things.

The "Heavy Air Ship Towering Everything" is a very high flying blimp that can't be hit by a lot of attacks, weaker dart monkeys simply can't throw the darts high enough and things like catapults and tack shooters can't reach it and it completely avoids most if not all ground traps.

HASTE also carries a weapon on the bottom designed for taking down missiles/rockets, if you have enough missiles firing some will hit but a lot of missiles will be shot down (it prioritises and shoots at the more powerful missiles, especially anti-blimp).

It's quite easy to take out if you have a few good towers that can actually hit it, although unless you prepare it will probably be quite painful.

It has 3000 Health, moves as fast as a BFB and it appears relatively far in, around when you encounter ZOMG, usually soon after.

Children
2 Moabs.