D
ANALOGER MODUS:
Zwei Cowboys stehen sich gegenüber und warten auf ein Duell. Die Spieler schieben ihre Mobil-telefone in eine Halterung und wählen ihre eigene Nummer. Dabei rufen sie über ein Wahlscheibentelefon die projizierten Revolverhelden an; wer schneller wählt, schiesst schneller.
Die Cowboys duellieren sich und warten wenig später erneut auf einen Schusswechsel.

MOBILFUNK MODUS:
Handygame: Im Mobilfunk-Modus folgen die Cowboys einem SMS Schusswechsel.
Der Drucker protokolliert diesen Ablauf und schreibt so quasi das Drehbuch zum Highnoon Schooting.

E
ANALOGUE PLAYING MODE:
Two persons will combat eachother in this game. Both plug their own cell phone in their repective slot in the a desk in front of the two opposite screens where two cowboys waiting to duel are projected. Upon a starting signal both players have to call their own cell phones using old phones with disc dials. The winner is the person whose call will arrive first at his cell phone. The respective cowboy will pull out his gun and shoot the other.

SMS PLAYING MODE:
Any person can register him/herself into a list of players by sending an SMS with the message „highnoon nickname“ to a number displayed at the Highnoon installation. The computer picks randomly two of the registrered persons for a duel. Both players receive an SMS with a code word at the same time. The winner is the one who will send an SMS back with the code word written backwards. The winner‘s cowboy will then shoot the other one. The special thing about this playing mode is that it can be played without being present at the installation as long as one knows the number to register.