Check whether a game category is supported Show all of the supported games Get the high scores as an XML document for a given game category Register for score submission, using combination of GUID and encryption key to authenticate Submit a score using GUID and response crypt key from registerForScores method Check whether a game category is supported Show all of the supported games Get the high scores as an XML document for a given game category Register for score submission, using combination of GUID and encryption key to authenticate Submit a score using GUID and response crypt key from registerForScores method Check whether a game category is supported Show all of the supported games Get the high scores as an XML document for a given game category Register for score submission, using combination of GUID and encryption key to authenticate Submit a score using GUID and response crypt key from registerForScores method A simple service to maintain the top scores for a given category (i.e. game), using XML files to store the data.