Iron Monger - worn by Obadiah Stane, the former mentor of Tony and a friend of Howard Stark - was an armour used against Iron Man when Stane was trying to take control of Stark Industries by eliminating Stark himself. It was a piece of hardware that utilised Tony Starks own technology, but looked to improve on it by making it stronger and it was much bulkier than the sleek design of Iron Mans suits as a result. The armour granted Stane vast super-strength and durability, the ability to fly and weapons that included a minigun, a rocket launcher and a shoulder-mounted missile - all of which could target objects or enemies by way of a highly sophisticated targeting system. It essentially had an early version of Iron Man beaten, until Tony Stark cleverly took it high into the sky and it suffered due to the temperature up there - with no system in place to stop it from freezing up.
