Ultralisk (StarCraft II)

The ultralisk remains the heavy assault beast for zerg forces. The ultralisk may now burrow, although it takes longer to burrow than smaller zerg units.

Overview
Ultralisks are fast and deal high damage to armored units (Wings of Liberty only). They also deal splash damage which makes them effective against groups of low HP units, such as s and s. They are vulnerable to immortals, s, and. They are immune to stun and mind control effects.

Wings of Liberty
Captive ultralisks are featured as a number of destructable doodads. "Piercing the Shroud" has a captive ultralisk; when destroyed it releases broodlings. A similar unselectable ultralisk is found in a hidden place in "Ghost of a Chance". Though it maintains its frenzied attribute it can still be captured using the hive mind emulator.

Heart of the Swarm
In the Heart of the Swarm campaign, the ultralisk can be evolved into either the Noxious or Torrasque strain after the necessary evolution mission is completed.

It is also significantly less powerful offensively compared to the multiplayer version, doing only 25 damage per attack against its main target and 5 damage to secondary targets.

Co-op Missions
The ultralisk and ultralisk cavern are exclusive to Kerrigan in Co-op Missions. Additional upgrades for the ultralisk become available when Kerrigan reaches Level 13. Kerrigan's ultralisks automatically upgrade into torrasques when she reaches Level 14.