Reached through UPDATES. One in each of eight rooms, two in room $0B, each room with four buttons (REMOTE_BUTTON) and a pad (REMOTE_PAD) that the player stands on to drive it. One robot at a time is in control: bit 7 of REMOTE_ORDERS says one has it, and bit 7 of its own +10 which. The first robot to run while no one has control takes it. While the player stands on a button the robot in control steps two units a turn in the button's direction (REMOTE_STEPS), animating through its four graphics, with a sound; on the pad it animates on the spot. When he steps off, it gives control up and the next robot to run takes it -- so the two in room $0B take turns, one for each time he steps off a button or the pad (measured there).

Otherwise a robot falls under gravity, with a sound pitched by its height while it moves. They are harmless, and there to push things: the rooms that have them are the rooms of the things that break when moved (FRAGILE), all but room $0B.

+10: bit 7 in control, waiting; bit 6 in control, moving.