Like its predecessor, the massive robot vehicle is intended for wilderness travel and exploration. The four legs, instead of two, provide superior stability, but the robot can limp along on two legs (at one third its normal speed) if necessary. It also has more sensors and medical and laboratory space, and additional defensive weapons. There was some concern about giving the Super-X more weapons, nut I it was deemed wise for travel in hostile wilderness d other environments. The EX-9 remains recognized as a non-combat exploration robot vehicle, and should still enjoy the rights of passage the older EX-5 Behemoth Explorer has been given. This is helped by the preservation of many familiar EX-5 characteristics, making it immediately recognized as a scientific or civilian transport, not a combat robot.