Haunted is a status effect introduced in Bloons TD 6 characterized by weakening a Bloon such that it takes more damage from
energy,
plasma, and
fire attacks and releases a damaging burst of energy when fully popped.
Haunted is represented on the Bloons Wiki as
, which depicts Level 1 Corvus without his spirit, since only the hero himself is needed to apply the effect onto bloons.
Only Corvus can apply Haunted.