There is probably a mirror material in the LiveDB (but you will not have access to that in the DEMO). Try glossy, with diffuse set to blank (or 0), specular set to white (or 1), roughness 0, filmwidth 0.
There is probably a mirror material in the LiveDB (but you will not have access to that in the DEMO). Try glossy, with diffuse set to blank (or 0), specular set to white (or 1), roughness 0, filmwidth 0.