An exception would appear to be Legion, a geth specifically designed to operate as an autonomous sentient unit outside the Perseus Veil. An individual geth has only a basic intelligence on par with animal instincts, but in groups they can reason, analyze situations, and make tactical decisions as well as any of the organic races. Geth can't share sensory data-they aren't a hive mind like the rachni-but in large groups they have more to think with. Effectively, they 'share' their processing power, distributing low-level processes like motor control and visual identification to free up bandwidth for higher reasoning and complex thought. Part of the geth's success is due to their neural network. The geth are also seen using omni-tools, and have seemingly modified them to heal synthetic wounds likewise, some geth facilities contain first-aid kits, implying that their synthetic 'tissues' can be repaired using conventional medical technology.

Geth 'bleed' a white conductive fluid when shot, but they don't have any internal organs or nervous system, so the geth do not feel hunger or pain. It is actually possible for this synthetic muscle to be grafted to organic tissue ( Saren Arterius has a grafted geth arm). Geth are primarily composed of two materials: a flexible but durable outer shell, and a kind of synthetic muscle tissue that gives Geth Hoppers their incredible agility. A common design feature among geth is a single brightly glowing photoreceptor, causing some to refer to them as 'flashlight heads'. Physically, the humanoid geth resemble quarians-their hands, head shape and legs are similar-which is probably a holdover from their origins.

Mass effect hardware sound crash