Weak Point

A weak point is a feature that an enemy can have. An specific turret type is required to hit an enemy's weak point. Once a weak point is hit, the enemy that had the weak point will take great damage, and its appearance will change in some way. A weak point can only be hit once, and cannot be hit again once hit for the first turret. Most bosses have multiple weak points.

Enemies with weak point

 * Tractor