The Hitac-Mothership was an Alien only available during the Hitac Event in September 2012, February 2013, November 2013 , May 2014 and September 2014,January 2016. These aliens were fairly large and inflicted massive damage upon any nearby ships. Each Hitac-Mothership had six Hitac-Minions attached to it, and was protected by an Insta-Shield, meaning only when the six Hitac-Minions were destroyed, could the Hitac-Mothership be destroyed.
The six minions and mothership combined together dealt a massive, and unseen damage from any other Aliens, of 90,000+. The mothership also had a new and unique ability to jump from map to map. It cycled around the Lower Maps, and first spawned in 3-4.