JESUS, Thrill! Just throw some of your ideas up there already!!
They have to travel to various locations around the world, doing challenges assigned them by the mystery game runner. In the course of the challenges they are allowed to try to stop each other by any means up to and including lethal force, some challenges may even target specific members to hunt down and the first one to kill them wins the challenge. Some of the challenges may be highly dangerous to the players, both from a legal standpoint if they get caught and/or from a physical or psychological standpoint, threatening their mental and physical wellbeing. there can only be one ultimate winner and the person who is last in each challenge gets taken out.