Iron Man #258

Tony Stark has just completed S.E.'s first combat training center, complete with artificial landscapes. Rhodey operates a remote-control treadmill robot in combat scenario against two Iron Mans. The treadmill viciously slams one of the Iron Mans into the pavement and backs up while the second Iron Man flies over to examine it. While the two targets are distracted, the treadmill lifts up a piece of concrete flooring and slams it down on top of the second Iron Man. Iron Man burrows downward and comes up behind the treadmill, where it hoists it up and slams it into the ground. The training situation is over and Iron Man I appears to be the victor.