It's supposed to be motion activated, but mostly the motor just hums. If you move his right arm sometimes the motor will catch and move it up & down, blades open & close. Both arms are jointed for movement, but only the right one is part of the battery operated movement. He is moveable at the head, waist and boots, as well as both arms and blades. There is a metal prong on one boot that has broken on one end, it fits into the hole and looks OK. The battery compartment is clean, no corrosion.