It may be farfetched, I know, but here is my viewing of the pics. In the bottom pic, Kyle is doing some sort of flip. You can see his head and then a shaft extend down from it(apparently). The shadowy shape is to thin to be a neck. I think he's doing a flip and holding the crate for support.
As for the lightsaber trails, look at the demo video, they look smooth and I doubt they took a step backwards.