Awesome demo. I thought I would just peek in and see what it was about, but then I got hooked and just played through to the end. It was fun learning all the modifiers so I could at a glance tell which of my opponent's parts I needed to take out first.
I will say that the "speed" mechanic felt a little opaque. Maybe I just didn't notice the little wings that double speed, but it felt like sometimes the speed would increase quite dramatically between rounds.