**_Entertaining low-budget Halloween slasher delivers the goods_** After a kid goes missing in a Southern California town, the legend of ‘Bloody Bobby’ develops, fueled by some alarming slayings on a few Halloweens. Thirty years later, two You-Tubing boys inadvertently unleash the violent, malevolent spirit (?) once again. "Black Pumpkin" (2018) is a low-budget Indie that comes in the tradition of the original “Halloween” and “Trick ’r Treat” (2007). It’s similar to “The Barn” from two years prior, just with a more compelling script and better observance to the genre’s staples. The trick or…