I've put together a quick demo of a menu idea for a mobile website or app. It only took me 20 minutes to build the entire prototype. Feel free to import and dissect.
This is an interactive dial pad, created with proto.io.
Development & original idea: https://spaces.proto.io/akisioannou
Graphic design: George Prentzas
A demo showcasing custom device size, animations and key actions.
Use arrow keys to switch between "Play" and "Settings", and X and Z keys to navigate.