Borg (mirror)

While the Borg in the Mirror Universe have the same hive-like mentality, the same assimilation methods, and the same advanced technology as their Federation universe counterparts, the similarity ends there. The Borg of the mirror universe are proactively aggressive and will attack any intruder foolish enough to set foot on a Borg ship. Regardless of whether or not the intruder possesses a threat to the ship, the Borg will use every resource at their disposal to assimilate the trespasser. In addition, while the Borg of the Federation universe move in a jerky, stiff-legged like fashion, those of the mirror universe are much quicker thanks to advances made in nanoprobe technology. Attempting to aim a weapon on a mirror Borg, or avoiding the injection tubules, is usually an effort in futility.

Borg ships also differ in the mirror universe, as they are much large. The cubes measure 10 kilometers or more on each, and they are equiped with a vast array of weapons that could easily destroy a Vor'cha class cruiser with a single shot. (Through a Glass, Darkly)