According to Popular Mechanics, the Israeli-manufactured VIPeR (Versatile, Intelligent, Portable Robot) is a tough military robot. Designed to act as a partner to dismounted troops in urban environments, the 9-in.-tall, 25-pound VIPeR can accept various sensor packages, including infrared cameras and software that maps buildings as the drone moves through them, as well as an explosives sniffer and a device that shoots jets of water to disarm bombs. But it also can open fire with a mini-Uzi submachine gun or release grenades from a 4-ft.-long robotic arm.