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As part of a massively distributed heterogeneous system, TerminatorBot, a novel, centimeter-scale crawling robot, has been developed to address applications in surveillance, search-and-rescue, and planetary exploration. Its two three-degree-of-freedom arms, which stow inside the cylindrical body for ballistic deployment and protected transport, comprise a dual-use mechanism for manipulation and locomotion. The intended applications require a small, rugged, and lightweight robot, hence, the desire for dual use. TerminatorBot's unique mechanism provides mobility and fine manipulation on a scale currently unavailable. To facilitate manipulation, we have also developed a specialized force/torque sensor. This new sensor design has a biased distribution of flexures, which equalizes force and torque sensitivities at the operational point. This work describes the mechanism and design of TerminatorBot, the specialized force/torque sensor, and the mechanism-specific gaits.