
See it in action here: https://www.flickr.com/photos/toltomeja/15686181072/
It is driven by 3 NXT motors, two for the wheels and one for catapults. And you never know what it will do next...

Full set
Enjoy and... Beware!
Well, I don't really know why it all happened. I just built a castle, as usual and... it started moving just like that. No idea about the story behind it - that's the only excuse I haveMaedhros wrote:I'm not so sure about why it would be moving about though, perhaps some additional details to explain that would have been nice? Some weird magical effects or funky wheels or even legs (an upgraded Baba Jaga-hut!) about its foundations perhaps...?