The Annihilator is a special agent that destroys all of the bloons on the screen. However, this comes at a price - you still lose some of the lives you would have lost if the destroyed bloons had escaped. When there are less than 100 lives worth of bloons on the screen, you lose 10% of the lives you would have lost (rounded up). When there are between 100 and 1000 lives worth of bloons on the screen, you lose 5% of the lives you would have lost (rounded up). When there are over 1000 lives worth of bloons on the screen, you lose 1% of the lives you would have lost (rounded up). However, MOAB-class bloons are not included in this - you always lose 10 lives for every M.O.A.B., 25 lives for every B.F.B., and 50 lives for every Z.O.M.G.; and the number of lives they would have caused you to lose are not counted in the total. The Annihilator costs 250 Monkey Monkey.
Advertisement