A first-person shooting game in which players can “sweep” U.S. soldiers with weapons has become famous in North Korea, online outlet Arirang-Meari reported on Monday.The game, titled “Yankee mopping-up operation,” was developed for mobile phone users by the North’s Soojongchon Technology Exchange Company.Players can reportedly “sweep the U.S. imperialist invading forces, who boast that they are ‘king’ of the world and condescend us, with a sniper rifle and various weapons.”“The weapon is updated every level and you can take advantage of various effects when shooting,” the outlet reported.“This game program gains popularity among