

Type O blood = monster bait. The weirdest dating criteria in tokusatsu history.
Theatrical version of episode 5 of Ultraman Ace TV series. Two women go missing, with witnesses testifying that they vanished underground. The only common link between the incidents was that both women had type O blood. TAC closes the case, but when Yuko and Seiji are out shopping, Yuko herself is targeted. Seiji manages to free her, and the two catch a glimpse of the terrible-monster, Aribunta.
Practical Effects
Aribunta puppet has genuinely unsettling mandible design.
Costume
Yuko's civilian outfits scream late-70s fashion time capsule.
Stunts
Underground tunnel collapse sequence surprisingly ambitious for TV budget.
Director
Tadashi Mafune
Trivia, insights & behind the scenes
This theatrical 'movie' is literally just episode 5 with a title card—1989 Japanese cinemas loved repackaging TV content for quick yen.
Aribunta's design homages 1954's Them!, but the blood type obsession reflects 1970s Japan's actual pseudoscientific personality blood type beliefs still prevalent today.
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