RoboSapien is a miniature robot controlled by a remote. The RoboSapien V2 expanded upon the original RoboSapien by making it easier to control. That does not mean that the RoboSapien V2 is impervious to problems. Just like any other electronic toy, many things can happen that call for troubleshooting.
Insert new batteries into the remote if it is not lighting up or functioning properly. Unscrew the remote's back panel with a Phillips screwdriver and place three new "AA" batteries into the remote. Screw the back panel tight using the screwdriver.
Replace the batteries in the robot if the robot is still not responding to the new remote. Turn the robot on its side. With the Phillips screwdriver, unscrew the screws in the bottom of the feet to remove the panel. Remove the three "D" batteries inside each foot. Replace them with new ones and screw the panel back into place.
Reset the RoboSapien to its default position, if you cannot get the RoboSapien to stand up. Press the "Y" button on the remote.
Move the RoboSapien from bright lights or settings where there are florescent lights. These will mess with the RoboSapien's sensors, causing it to not function properly.