If Ghidorah will be from space, How will is natural instincts work

It could be seeking nutrients or resources, most animals don't have the natural instinct of 'kill kill kill'.

I think it would be interesting for King Ghidorah to just kill and destroy for seemingly no reason at all. He would be a great foil to Godzilla this way. Godzilla is a force of nature that only fights or destroys when neccessary in order to keep the balance of nature intact. Ghidorah in contrast is an extraterrestrial being that only exists to disrupt the balance of nature by killing and destroying everything he comes into contact with. There would be no rhyme or reason behind what King Ghidorah does, making him a terrifying and mysterious enemy.

i think ghidorah could act as an invasive species, sorta like when an animal is taken to a habitat it dosen't belong, something like a pyton in the everglades

Well, I know it is his basic background info of "destroy destroy destroy," but I hope that Ghidroah is given more reason to want to attack. Maybe like a competitiv predatory stance with Godzilla, like wolves and coyotes (who kill each other all the time not for food, but for competition). Ghidorah finds earth, calls it home, but runs into Godzilla. They feed on the same resource, and now must fight for it.

It's simple, realistic, and sets up their feud.

first, it would help if the spelling is correct in the heading and lead in.  from space would be interesting.  from earth?  some type of genetic experiment gone wrong?

DAVIDGOJIRA - I have noticed that, while drawing to our attention the improper spelling and sentence struture of the question posed by HIGH FLYERS TAG TEAM, you have overlooked a fundamental aspect of sentence structure in your own statements: you must capitalize the first letter of each word that begins a sentence. Please, I implore you to maintain a civil and non-debasing demeanor while engaging in social discourse with us. We are a friendly community; however, we do not respond in a positive fashion when exposed to needless fuss. Regardless of the citations mentioned above, I wish to welcome you to SCIFIED! It is always quite pleasing to see new faces! :)

HIGH FLYERS TAG TEAM - What an interesting question! Hmm...I would venture to say that Ghidorah might be compelled to attack Earth out of a much more, shall we say, "alien" impulse. Perhaps our world contains an element that is intrinsic to Ghidorah's existence yet extremely rare within the galaxy? Another reason Ghidorah could be on the warpath with Earth dead in his/her sights is the simple matter of food. It is possible that Ghidorah is a "world eater" and falls upon planets to consume every last living organism they harbor! Regardless, thank you so much for posting this fun and thought provoking topic! :)

I agree with @Natezilla10000

My idea is similar to Natezilla's. But more like if Ghidorah was a parasitic monster. Like it finds a planet then saps it dry of its resources. But then Godzilla fights Ghidorah for the earth as his territory.

I made an entire blog page on Wikizilla detailing my analysis of the parasitic space organism kind of King Ghidorah, right here:

A New Theory on the Legendary King Ghidorah

@THEGMAN123 Brilliant! You typed out my thoughts basically. I'm not denying their yours too. I'm just mind blown at how spot on you were with both our ideas.

I came up with these ideas and the blog itself months ago :P

You certainly did an excellent job thoroughly explaining your thoughts.

So... a simplified Galactus?