Battle Base - A mobile fortress that houses all the other vehicles and is usually attached to the Pride as its bridge.

In the sequel (part of the original arcade machine) they must venture into a pyramid, to stop an evil force that is building a mobile fortress.

As she couldn't penetrate its skin, she had no way of knowing whether they were approaching a floating cemetery or a mobile fortress.

The mobile fortresses would then come up, cut off the Boskonians' power intake, and finish up the job.

Butcher's headquarters is the powerful mobile fortress, Bandok.

Yet inside the fundamental difference was obvious: it was a precision-tooled mobile fortress and communications center.

Particularly large examples are used as mobile fortresses, while smaller such beasts serve as pack animals.

A robot soldier from an ancient mobile fortress.

Like a mobile fortress, deep-walled and safe, Waylander had ghosted through life as alone as a man could be.

They have developed new and powerful mobile fortresses mounting unheard-of weapons and the city reports that it cannot long withstand their attack.