Just download the jar file and double click on it. You will need to have the Java Runtime Environment (6 or 7) installed on your system (Linux, Mac OS or Windows).
DESIGN: Javier Gálvez Guerrero - Jordi Garcia Cuesta - Mariona Valls Porta
PROGRAMMING: Javier Gálvez Guerrero
GRAPHICS: Jordi Garcia Cuesta - Mariona Valls Porta
MUSIC: Nikka - HIV rmx by Ilia Mayer