Gory Plum of Japanese Lab Worker DOOM

An original Japanese pre-record of Biotherapy arrived today. It's a 35 minute short from 1986 concerning a raging humanoid ripping his way through hapless workers in the laboratory that created him. No subtitles of any kind and there's a rather popular bootleg DVD floating around (sourced from this VHS), but it's cool owning a still super obscure chunk of Japanese zany in its true form. Of course it was snagged on the cheap for $13, but looking at XE 12,800 yen converts into $133 for an original price. Geez...