StarCraft II: Wings of Liberty/Zerg units

Some Zerg units have the ability to morph into an altered or different form by spending time in some sort of cacoon. Although perhaps beneficial, morphing a unit costs resources.

Ultralisk
Has 4 scythes instead of two.

Mutalisk
A flying unit with an attack that bounces off of enemies.

Nydus Worm
A giant worm that burrows through the earth, allowing the Zerg to transport units to various locations.

Zergling
The traditional zerg groundling, the zergling is a melee unit that is only useful in large groups.


 * Abilities
 * Morphs to: Baneling
 * Burrow

Baneling
Banelings are Zerglings who have morphed into an acidic, suicide bombing creature. They explode on collision with an enemy unit, dealing lots of damage over a large area.