This application describes tools and methods for the analysis, interpretation and modification of games and for the development, design and construction of new games. The weight supporting loops and the lateral members define openings that are adapted to encircle a wearer’s legs, and the back sections are adapted to support the wearer’s lower back andor buttocks. The output signals TDQ, SRAS, MOUT and BITST of the semiconductor memory devices are controlled by the output selector, passed through a common test bus and then output from a common external terminal.