Extra Damage to Fortified

Extra Damage to Fortified is a projectile behavior characterized by dealing more damage than that tower's base damage to Fortified Bloon properties per hit. It is part of the damage types family.

Extra Damage to Fortified is represented on Bloons Wiki as, the upgrade icon for Spiked Balls in Bloons TD 6, as it is among the few physical, non-acidic attacks to gain this property outside of Tier 5 upgrades or Heroes. Extra Damage to Fortified is simply a subset of Extra Damage. Typical examples with Extra Damage to Fortified include Spiked Balls, Perishing Potions versus Fortified MOAB-class, Deconstruction, and Heavy Shells.

All attacks require an upgrade to deal more than one damage to Fortified per hit. Heroes can gain Weak Point to deal +1 damage to Fortified by default.