Invisiblimp

The Invisiblimp is a MOAB-class bloon, which like the Invisible Bloon, can only be hit by road spikes and spike factories. It takes 400 hits to pop, and will release 40 Invisible Bloons when popped, giving it an RBE of 600. MOAB-SHREDR spikes will deal 5x damage to the Invisiblimp.

Abilities
Cannot be targeted by any tower, not even when they're in range of a 0/3 monkey village.