Summer is the perfect time of year for outdoor games, like corn hole, badminton, volleyball, even water balloon fights. But there's one classic game every outdoor party is seriously overlooking, and that's Twister. And not the traditional, two to four-person game you grew up with. No—Hammacher Schlemmer has taken the concept to the next level, with a 15-foot by 15-foot inflatable that lets everyone get in on the fun at once.