These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Godzilla vs. Biollante
Awesome Music: Composed by Koichi Sugiyama. Yes, that Koichi Sugiyama.
Also, just before Osaka is evacuated, a snippet of the Yuki Saito cover of Yume no Naka e can be heard.
Surprisingly Improved Sequel: While "The Return of Godzilla" is still considered one of the better movies in the series, this film is considered an improvement in terms of special effects and pacing as well as having more interesting characters.
Vindicated by History: Back when it was made the film didn't do quite so well, prompting the return of Ghidorah, Mothra, Rodan and Mechagodzilla in following films. Nowadays its considered one of the absolute best of the Hesei films alongside vs. Destroyah, and one of the best films in the franchise overall thanks to the high quality of the effects.
The loss of his daughter is what causes Shirigami to create Biollante. Especially since it's not a Kaiju attack that kills her, it's a terrorist bomb and he's too far away to save her. It's even more heartbreaking in the first battle between Godzilla and Biollante in Fridge Horror terms. As Biollante is burning, he is basically watching his daughter die again, only this time it's right in front of him.