Riding a bicycle isn't exactly easy, especially if you're made of circuitry, wires, and a gyroscope. That was Murata Seisaku-kun's one trick, and now he's sadly obsolete. Meet Seiko, a 20-inch tall, 11 pound unicycle riding robot. Like her, uh, "cousin" Keisaku-kun, Seiko relies on a chest-mounted gyro to stay upright and uses Bluetooth to communicate with a PC that gives instructions. (Yes, she's a PC.) Lucky robot lovers can watch the whole family of robo-carnies do its stuff at CEATEC Japan 2008, but even luckier you can check out the elder bot on his bike in motion after the break without having to leave your chair.