Big Boobs Buster – Whole Grain Pictures (Blu-ray)

Release Date: Japan, 1990
Director: Hisashi Watanabe
Writers: Hisashi Watanabe, Kôichirô Yasunaga
Cast: Harumi Kai, Tôru Minegishi, Aya Katsuragi, Mariko Itsuki, Marina Matsumoto, Masakazu Arai, Natsuko Kayama, Asako Sakura, Hideyo Amamoto, Minori Yoshinaga, Uran Hirosaki

Release Date: March 10th, 2026
Approximate Running Time: 48 Minutes 37 seconds
Aspect Ratio: 1.77:1 Widescreen / 1080 Progressive / MPEG-4 AVC
Rating: NR
Sound: LPCM Stereo Japanese, LPCM Stereo English
Subtitles: English
Region Coding: Region Free
Retail Price: $24.95

"High school girl Masako can only think about her crush, Bando. But when she finally confesses love, he turns her down flat... for being flat! This sends Masako into a wild spiral, one that leads her to become a superhero: the Big Boobs Buster! As such, she will pursue those lucky, evil, big-boobed girls to the ends of the Earth. She catches them, pins them down, and casts their boobs in resin, each boob mold a trophy of triumph for A-cups of the world!" - synopsis provided by the distributor

Video: 5/5

Big Boobs Buster comes on a 25 GB single layer Blu-ray. 

Disc Size: 18.7 GB

Feature: 11.7 GB

The source looks excellent; the flesh tones look healthy, the colors are nicely saturated, the image clarity and compression are solid, the black levels are strong, and there are no issues with digital noise reduction.

Audio: 5/5 (LPCM Stereo Japanese), 4.5/5 (LPCM Stereo English)

This release comes with two audio options, a LPCM stereo mix in Japanese and a LPCM stereo mix in English. While both audio tracks sound clean, clear, balanced, and robust when they should, the Japanese language track is the clear winner. Included are removable English subtitles for the Japanese language track and removable English subtitles for songs and text in Japanese when watching the English language track.

Extras:

Extras for this release include a vintage English-language trailer (1 minute 2 seconds, LPCM stereo with text in English, no subtitles), a U.S. Blu-ray release trailer (1 minute 12 seconds, LPCM stereo Japanese with non-removable English subtitles), Let in Shine; Big Boobs Buster! The Funniest Bloopers (12 minutes 20 seconds, LPCM stereo Japanese with removable English subtitles or LPCM stereo English, no subtitles), and a collection of trailers for titles also available from MediaOCD.

Summary:

A girl seeks revenge against all of the big-breasted girls at her school when the boy she likes rejects her because she’s flat-chested.

Big Boobs Buster is an action/comedy hybrid film that was adapted from Kōichirō Yasunaga's (he's most known for Prefectural Earth Defense Force) manga of the same name. Although the humor veers heavily into the absurd and is accentuated with exaggeration, there is actually a message behind Big Boobs Buster; it is a film about body positivity.

The narrative revolves around Masako, a girl who has everything except the one thing, large breasts. Jealous of the attention that well-endowed girls receive, Masako creates a group called Big Boobs Busters and designs a ridiculous-looking outfit for her alter ego. While her initial goal was to eliminate any competition for the boy she loved, by the time he finally showed interest, she had gained confidence and moved on.

At just under 49 minutes in length, the narrative has no throwaway moments and moves briskly. The narrative features a considerable amount of exposed breasts, and the humor consistently lands effectively. There is a running gag in which the girls for whom she makes life casts—specifically, the big-breasted girls—become aroused by her touch. Ultimately, Big Boobs Buster focuses on having fun, and it certainly delivers in that aspect and more.

Big Boobs Buster gets a solid release from Whole Grain Pictures. Highly recommended.

Written by Michael Den Boer