A gundam which has solar and lunar panels on it to power it. Don't think it would have enough energy to fly so its going to have to be a ground one and just put controls in on the inside. The only reason I think it would be possible for movements with a controller like those robo toys you can get which can make it do certain actions. If that doesnt work you yourself operate the gundam arms with your arms by stick them in a socket. And the running for the gundam should be some sort of joystick.