How to build a flash game arcade game machine by a PC ?

I am planning to build a flash game machine base on the flash game: gold miner :(check this link http://www.goldminer1.com/ for the game).

I would like to build it like a arcade machine in the store . That means without mouse and keyboard , only use a key to control the character , all of work of mouse should be automatically done by program(all of game selections would be set in advanced by PC mouse controlling program , through it is not optimal choose.) .
the machine will look like this in my mind :

I have a PC which could run this flash game . I don't know how to program the mouse control and how to control the character by a single button which connect to PC . I think It could be done by arduino, is it right ?

Is here anyone know the similar project to consider or give me any suggestions will be very appreciated !