Kid606's new odds-and-ends compendium rounds up bastardized rave anthems, unfinished remixes, genre homages, and pisstakes: basically, miscellaneous shit too strange for other labels to issue. While ruffneck raga-jungle burners with Caribbean alpha-male toasting dominate Who Still Kill Sound?, its most memorable piece is "Robitussin Motherfucker (DJ Screw RIP)," a cough-syrup tribute to the deceased Houston producer who slowed hip-hop to an eerie crawl that made you think your batteries were dying: Imagine crunk stunned to a stupor.