So basically, the first step is to choose what kind of a battle you wish to have. Is it a solo practice match, where you test your skills? Is it a first blood match against your opponent, to see who draws blood first? Is it a fight to the death match? Or is it a ladder match?
Once that has been decided you may choose whether you wish to be Piano 1 or Piano 2. A coin toss here would be advised to ensure a fair outcome and choice, or if one player allows his opponent to choose a piano then that is also acceptable.
The next step is to choose your characters and dress up as them. Johnny Cage is perhaps the easiest to dress up as with the costume only requiring sunglasses, jeans, shoes and a lack of shirt. For those who wish to cross-dress, we would advise not doing so in public as many non-piano Mortal Kombat fans may take offense to it.
Once both players are set up on their pianos, you may begin the battle.
The black keys on the piano are punches and the white keys are kicks. However, only combinations work in this case. You must play popular classical melodies and tunes in order to defeat your opponent. Ode to Joy, the Flight of the Bumblebee and the Mortal Kombat theme are all considered finishers, so use them when you wish to either press for the advantage or finish the opponent off.