A robot or vehicle locomotes by tumbling. Legs distributed over the
surface of the robot individually extend or retract. A control system
coordinates the action of the legs to cause the robot to tumble in any
direction. A robot using this form of locomotion is highly maneuverable,
can climb slopes, and can step over obstacles. It can provide a smooth
ride on rugged terrain. A variation can jump into the air and land
safely. A variation can be built with as few as six moving parts, can
fold to fit into a projectile, and instantly unfold on landing. It may
use airbags instead of legs. It can include a video system without moving
parts that produces a stable, non-tumbling view of its surroundings while
tumbling. It is an ideal remotely operated vehicle for search and rescue,
firefighting, or reconnaissance for the military or police.