I got this kit yesterday from Amazon.com. I'm not positive, but I think it is a knock-off an original Gakken kit. The title on the box says Wind Power Beast. The manufacturer is Cute Sunlight, kit no. 2141. I'm not sure of the scale, but I'm guessing 1/100. The miniature is based on a original piece created by kinetic artist Theo Jansen. His was called the Strand Beest. He has made many iterations of his first creation. It was fun, although sometimes frustrating. The English was error free. However, they sometimes used the wrong terminology when describing the position of one piece in relation to another. Having done LEGO was definitely a help, as the illustrations were very precise. If you have an inner geek, I highly recommend it. And yes, it walks sideways when you blow on the fan blades.