The Apopalypse Bloon is the of the Hard difficulty in BTD6 above advanced track difficulty (Expert, Extreme, Nearly Impossible). It takes the appearance of the icon of the Apopalypse Mode in BTD5 and is only slightly bigger than a normal . It moves slightly faster than a red bloon, but slower than a Blue Bloon. It only appears once in the game at round 100. It takes 20000 hits to pop, doesn't spawn any children, and has these special abilities that randomly trigger at times: