Runner (The Matrix)

Runners are a type of advanced Machine scout/patrol unit capable of multiple transformation modes.

Overview
Runners are so named after their function to run over ground instead of the typical hovering that most of the Machines use, since they have no capability to hover and are bound to the ground with their movements. They are even able to swim and mostly appear in pairs.

Runners are able to transform to adapt to the needs of the specific situation and environment. For instance, a Runner is able to transform from a tentacled insectoid that walks on four spider-like legs to a form resembling a humanoid that slides along with its head tentacles and uses its legs as arms tipped with huge claws. Runners are equipped for close combat with these claws, but when they are facing a larger group of targets or spot rebels they can drop off a tracking beacon that alerts the nearest Machines and retreat, leaving the dirty work to the more powerful Sentinels.