Rerunners: Race for the World is a very entertaining runner that we enjoy here at TouchArcade Towers. The latest update lets players challenge friends and others to a 1v1 race, an attempt to make the game more social according to the developers. In this new mode, you get two options: you either race your in-game or Facebook friends in a Buddy Challenge or do a Quick Challenge that matches you against random players. In the Buddy Challenge you have to bet coins before entering and then the winner gets to collect them all. So, bragging rights and money, what more could you ask for? Since there's the betting side of it, this feature comes with a Fair Play option the equalizes skills and items.