The robot is moved with either the keyboard or a joystick, and can make it walk side to side, climb up and down, and jump, collecting the white power pills from the platforms in the process. The player begins with four robots, and loses one if it falls too much or touches any of the fireball enemies. When one of the pulsing white rings scattered around the level is collected, the robot becomes temporarily invulnerable and can safely touch the fireballs, destroying them. In each level the player begins with 100 units of energy and loses units at a rate of about one per second, making quick completion of each level important. When the energy runs out, the player loses a robot.