I agree with the above poster. I've been studying Piano for over 7 years next month, and it would be near impossible for you to properly play that piece without knowing the basics, without proper instruction, and trying to explain it over the net. Although the piece may not be as hard to play as the Final Fantasy Prelude (still working on that), I must say, it is a very enjoyable piece to play.

Your reason alone for playing that piece will not be good enough a reason for you to take up piano. It goes much deeper than that, and it takes hundreds, and even thousands of clocked in hours at the piano... just pure repitition to reach the level of playing ability.

Whether or not you do choose to enjoy the learn the art of the piano, I wish you good luck. To me, playing piano, video games, and martial arts is a great life to lead.