Suggested by Destroyer Egghead is a genius but he is in a universe where there was many geniuses who are simply smarter than him which puts the guy in a pretty rough spot. He’s always been outshined since day 1 and I don’t really see that changing anytime soon. He won’t be able to keep up with King Ghidorah for very long. His strongest lasers may be able to deal some damage, but Ghidorah’s lasers will definitely finish him off a lot sooner. Egghead has no real durability. King Ghidorah wins.
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I don’t know much about Egghead, but considering how trouble the Avengers, The Fantastic Four, and Spiderman had with Ghidorah’s greatest foe, he has no chance.
Agreed, Egghead won’t be able to think his way out of this one