Pre-Emptive

Pre-Emptive is an attack behaviour in Bloons TD 6. It is characterized by an attack that only affects bloons that enter the screen. Bloons that are already onscreen during the attack, and the descendants thereof, are ignored. This is the opposite of most attacks, which can only affect bloons that have already spawned.

Pre-Emptive is represented on Bloons Wiki as, the upgrade icon for Pre-Emptive Strike, whose pre-emptive missiles target MOAB-Class Bloons entering the screen.

Typical examples of Pre-Emptive behaviour include Pre-Emptive Strike missiles, Benjamin's skimming and Syphon Funding abilities, and Grand Saboteur ability's 25% HP reduction.