Unmade Film
Intended Release: 1991

Godzilla 3

ゴジラ3
[Gojira 3]

Following the confrontation between the messenger of peace Mothra and the demon beast Bagan, deep beneath the waves of the Pacific Ocean, something begins to stir... Influenced by their intense battle, Godzilla, who had been driven to the sea by Biollante and the effects of the ANEB, was restored to health and now makes its way to the surface.

Meanwhile, the story of Bagan begins to unfold: it is learned that the malevolent creature was allegedly a project left by aliens responsible for the ruins of the Nazca civilization in Peru. But this revelation only leads to more questions as to the true purpose of Bagan - and where its creators may be now.

LOST PROJECT HISTORY

Conceived not long after the completion of the early draft for Mothra vs. Bagan in 1990 and with an intended release in 1991, the tentatively titled Godzilla 3 would have immediately picked up where the previous movie left off. With Bagan sealed away by Mothra, the story would have centered once again around Godzilla, who had been asleep in the ocean due to the effects of the ANEB from Godzilla vs. Biollante (1989), while also covering the origins of the previous work's antagonist that had been very mildly alluded to.

However, as Godzilla vs. Biollante (1989) didn't meet Toho's expectations at the box office, both Mothra vs. Bagan and the short-lived ideas for its sequel would be shelved in favor of reviving Godzilla's greatest nemesis, King Ghidorah, in what would eventually become Godzilla vs. King Ghidorah (1991).

Given how early the story for this movie was made, it's reasonable to assume not all details were set in stone, outside of Godzilla making a reappearance and some sort of continued coverage of Bagan.

Monsters

Aliens, SDF & Misc.

Background and Trivia

• The article picture featuring the Bagan model was created by digital artist dopepope using Yasushi Nirasawa's concept art as a basis and commissioned for use on Toho Kingdom by staff. This and other renders can be viewed on dopepope's ArtStation and deviantArt pages.
• This unmade movie was covered in the 1992 Japanese publication Encyclopedia of Godzilla - New Mothra Version (ASIN: B0084BST0U), in a half-page article largely devoted to Mothra vs. Bagan.
• According to director Kazuki Omori, Mothra vs. Bagan was intended to kickstart a tetralogy, meaning Godzilla 3 would have been the second movie in this four-part series. The series would have pioneered a new line of monster movies that would have focused on monsters outside of just Godzilla. This brief interview can be found in the special features of the 2002 Toho-published Japanese DVD release of Godzilla vs. Mothra (1992).
  
  Likewise, a paragraph in the 50th anniversary book Mothra Movie Encyclopedia (ISBN: 4862487610) corroborates this statement, saying that this strategy was largely the idea of Tomoyuki Tanaka, and that a fight between Godzilla and Mothra would have been an inevitability after Mothra vs. Bagan. It is unknown when Mothra would have appeared in this series, though it's possible she could have reappeared as soon as Godzilla 3.

Images