"A R.O.B. model boasting robo-beam-blasting eye lenses suited for long-range combat. There are two types--one acts like a stationary gun, sitting in place and lining up targets, and the other is mobile. Actually, the R.O.B. Sentry also features beam-firing capabilities, but because the roles of the R.O.B. Squad are so well defined, there's no conflict between the ranks."