In “Child’s Play 2,” the antics of possessed Good Guy doll Chucky (Brad Dourif) are reduced to admittedly competent slasher mechanics, complete with threadbare characters, awkward wardrobes and a teency bit of blood. Lacking in subtlety but nevertheless successful at working a spell on the viewer, this first sequel in the series is never scary but passes rank in terms of atmosphere, while the plot unfolds at a rate fitting to the story it aims to tell — namely that Chucky is back on the trail of Andy Barclay (Alex Vincent), now in a foster home and still hanging on to the belief that his doll sprang to life and began killing people. The highlight of “Child’s Play 2” fittingly comes with the climaxe, an at times farcical chase around a toy factory in which more than one character gets hideously mutilated. Unapologetically goofy, increasingly violent and altogether fun, John Lafia’s film could never be mistaken as high art (or even great horror) but it makes for some frivolous fun anyway.