Released at Brain Dead outside the US, there are currently three versions of this movie. The MPAA has seen fit to rate one version R, at 85 minutes runtime. Do not get this version. The unrated version runs 97 minutes. There also exists a bootleg laserdisc dub with Japanese subtitles, running at ~104 minutes. (numbers are fom the IMDB).
This film is unquestionably good for the target fan base.