Catch the Sperm is a Swiss computer game recognized as an entertaining way for health professionals to promote prevention of HIV.The original Catch the Sperm (now known as CTS Style I) is a 3.4-megabyte action game created in 2001 and updated in 2002 and 2003 by Phenomedia AG CH for UNICEF and the Swiss Federal Office of Public Health's Stop AIDS Campaign. The game can be played on personal computer, mobile telephone, or cellular telephone.The game was designed for free international distribution. The art / IP is owned by Ingo Mesche who created all the game graphics for the versions 2001-2013 Various versions Catch the Sperm is available in seven versions: CTS Style 1 (2001) CTS Style 2 (2002) Duel (2003) Carnival (2003) Summer (2003) Swiss Soccer (2003) Christmas (2003).Each version has its own theme, sperm characters, virus villains, and screen graphics, some of which seem to have been designed to parody the original images [1]. CTS Style 1 The original Catch...