Getting quite tempted to break out the MiG. Concept so far is only a sketch in plywood , but would involve a 50lb+ drum powered by a Briggs Stratton with victor 883's juicing some Bag motors and Vex gearboxes into 16" wheels. Frame mainly constructed from 20mm tube apart from the ubiquitous hardox box containing the expensive bits and cheap Chinese titanium. Car tyre armour and pivot bars with mini remora multibots, basically spikes with big magnets on their head to go stick on an opponent. Sprinkle in machine learning cluster mesh and devolved autonomous operation with all functions of robot currently being live tweeted by onboard BBC microbit as a way to ensure automatic selection for series 2. Something for the robo professor to discuss, Semi fragile design to appeal to production based on the promise of skinning to death other weak entries and going large on self destruction to those who spend too much.