 The game is set in an abandoned warehouse @-@ like facility , containing a number of different rooms filled with puzzles , where Zero forces the characters to participate in the Nonary Game . The characters are affixed with bracelets that display a point value that is initially set at three . During the game they participate in rounds of the Ambidex Game , in which they have to choose to " ally " or " betray " the other characters . The choices made affect the players ' bracelet points : if two opponents both choose " ally " , each individual gains two points ; if the two opponents both choose " betray " , no change occurs ; and if one opponent chooses " betray " while the other chooses " ally " , the opponent who chose " betray " gains three points while the other opponent loses two points . Participants who gain at least nine points are able to escape , while those who reach zero points are executed . 
