Suggested by Destroyer Firefly has a gun and over the years he has gotten some other equipment as well like his energy sword and more guns. The guy is loaded but all the guns on the planet won’t be enough to stop this Kaiju. Biollante can eat all of those attacks with ease and keep on going for more action. That’s the difference between the two fighters as Firefly will lose after the first hi lands. Biollante wins.