The worlds of music and monsters collide in “KPop Demon Hunters.” It’s a musical from co-writers/directors Maggie Kang and Chris Appelhans, who seek to explore pop culture trends through the world of animation, allowing fantasy to flow a bit more freely. The material isn’t exactly striking while the iron is hot, but the production has a vision for slickly designed action set pieces and plenty of musical performances, as selling a soundtrack is a top priority for the effort. “KPop Demon Hunters” obviously has a target demographic, and they should be pleased with this overview of heated fandom and band interactions. Outsiders might be a bit more bewildered with the particulars of this story, but the basics in struggle and sensitivity are noted, and the animation remains lively, keeping the endeavor moving forward with energetic visuals and pop star sheen. Read the rest at Blu-ray.com