We use the devices on the smart phone to implement the interface. Other than the basic functions, key-in, and mouse
control, we will include different functions into the design of the game control interface by combining several devices on
the smart phone according to the game. In our experiment, we use a first person shooting game (FPS) and a massive
multiplayer online role-player game (MMORPG) as the test PC games. The devices may be used and their functions are as
below: