Purple Bloon

"Purple Bloons contain 2 Pink Bloons, are fast AND are immune to all energy, fire, and plasma type effects."

- Message upon first encounter (BTD6)

The Purple Bloon is a bloon that appears in Bloons Tower Defense 6 and first appears on round 25. It has immunity to energy, fire, and plasma effects, and is a parent of the pink bloon and has a RBE of 12. It could be compared to the White Bloon and Black Bloon for it's immunity to specific attacks, however unlike them they do not spawn from any higher level bloon.