The Real Ghostbusters (1986)

S6E16 The Magnificent Five

Black Bart, a sinister cowboy-ghost from the Spirit World, seizes control of a Texas town with a nefarious scheme. His goal is to siphon the town's underground spectral energy well, which he believes will transform him into a fully-realized demon. As his plans unfold, the townsfolk must band together to confront this supernatural threat and protect their home from his malevolent grasp.