Two9’s Retro Su$h! stays chilling with “Cool Kong,” the final release before next week’s full project Kung Fu in Japan. Over a slow beat harkening to the classics of southern rap’s past, Retro Jace and Ceej sound so comfortable and laid back rapping about the stories that they craft. While Two9 as a whole is a force to be reckoned with, Retro Su$h! has blazed their own lane with work such as “Cool Kong” and “Stayin True,” as the chemistry between Jace and Ceej is palpably dope in a mellow, head-nodding way.