Shake Shack Yeongdeungpo Times Square Branch is a burger restaurant inside Times Square in Yeongdeungpo, Seoul. The ShackBurger is a cheeseburger with a beef patty, tomato, lettuce, and ShackSauce, and fries and a vanilla shake are also available. The restaurant is spacious, with many seats and a hand-washing area. The burgers are on the smaller side, and some menu items have a strong salty taste.