It said the engine info in the original Ebay add. He claims that all it needed to run the hydraulics was like a 5 horse briggs and strat, and he was selling it for like $100,000 in order to fund a more streamlined model. The rig I was talking about is the scaffolding that goes around the whole chassis of the power-suit. It can be seen more clearly in some of the other videos. Go to the Lynx link, and look at the other vids. I'm pretty sure they never show it do anything freestanding, that's the trick behind editing video. Like that infamous dancing christmas light video that was so popular this past holiday. That video looked to me like a stop motion film, and if you look close, you can see people coming and going at the door of the house that are there in one frame, and not the next. The people claim that is an artifact of the quality reduction they had to do to post the video. However in some of the other light videos, the camera angle changes but the song doesn't skip a beat, which means the footage has been edited. People are so used to seeing edited film, they really don't think anything of it when the view switches from like a distance to close up and so forth.