Playawhat? It’s an inside joke—the playa refers to dry lake bed that hosts Burning Man. Folks who want to keep that dusty celebration going can dig out their burner duds and head down to Bally’s second floor, where DJs will spin playa-friendly beats for the costumed crowd. Local art, dancers, POI performers and fortune tellers round out this uncommon Halloween party. October 26, 10 p.m., $25, $20 with costume.