Stutter Step is a technique where a unit is ordered to move right as its attack animation starts. This way it will deal damage but instantly start moving again, allowing it to keep up with fleeing units and attack again. This technique is most often employed by Terran players with Marine and Marauder compositions; however it can be used with nearly all ranged units. The only ranged units that do not benefit from Stutter Step micro are those with high rates of fire compared to their acceleration. The Hydralisk is an example of this, where Attack move is most ideal.