For the 20th anniversary of TriStar's Godzilla: a look at the 1998 Godzilla, Zilla, and Cyber Godzilla! https://wikizilla.org/wiki/Godzilla/TriStar
https://wikizilla.org/wiki/Zilla
https://wikizilla.org/wiki/Cyber_Godzilla
(Yes, although Toho sees no distinction between them except for name alone, Godzilla® and Zilla™ are legally separate characters. They're grouped together in this video for the sake of convenience.)
Sources: • https://wikizilla.org/wiki/Godzilla/TriStar#References
• https://wikizilla.org/wiki/Zilla#References
• http://www.scifijapan.com/articles/2015/05/31/godzilla-unmade-the-history-of-jan-de-bonts-unproduced-tristar-film-part-4-of-4/
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• http://www.scifiscripts.com/scripts/GODZILLAfirst.txt
• http://spankzilla85.tumblr.com/post/164511784285/i-dont-know-whether-or-not-youve-been-asked-this
• http://spankzilla85.tumblr.com/post/138933487195/a-question-about-rulers-of-earth-fantastic
• https://web.archive.org/web/20061201015441/http://www.henshinonline.com:80/archive.html
• http://www.newsweek.com/hollywood-172078
• https://twitter.com/godzilla_jp/status/487568248313884673
Written by Les, Astounding Beyond Belief, Titanollante, KoopaGalaxain, The Boy Who Cried Godzilla
Edited, voiced by Titanollante
Transcript:
https://wikizilla.org/wiki/Wikizilla:YouTube/Kaiju_Profile:_Zilla
Hashtags: #Godzilla1998 #Zilla #Godzilla
Godzilla and other Toho monsters © Toho Co., Ltd.