Biollante roared as she swept all who stood in her way, she smashed an crushed armies with her vines and her corrosive sap, it seemed nothing could stop her until Kiryu landed in front of her

Kiryu: *weapons appear from arms and shoulders* stop right there, Biollante!

Biollante: never! Ghidorah will exact his revenge and the pleasure of killing Godzilla will be all mine!

Kiryu: *dodges her vines and attacks with a blade* He's your half brother! as is Spacegodzilla!

Biollante: which is exactly why we want to kill him, as we want to kill all the Earth Defenders, even you filthy scrapheaps!

Kiryu: *shoots his laser breath*

Biollante: ugh!

Biollante used her vines to trap Kiryu, grabbing his arms, legs and tail, she then used her corrosive sap to damage Kiryu's entire frame, little aware of the glowing blue energy in Kiryu's chest 

Biollante: huh!?

Kiryu: Zero Cannon....FIRE!!!!

despite corroded, Kiryu's chest opened and out came a massive blast of ice, completely freezing Biollante, Kiryu despite the damage to his joints and body then picks Biollante with his robotic muscle strength, flies over the ocean and drops her deep

Kiryu: mission accomplished, major damage sustained, i'm heading back now