Balance And Chaos: A HTTYD and Godzilla Crossover

A long time ago, before humans or even dragons roamed the Earth, there were the titans. Massive beasts with powers you could only dream of. The world had more radiation on the surface for food for the multitude of titans. There was an alpha species known as Gojira or Godzilla that was the 'King' of the monsters. He didn't force the titans to do anything except not to mindlessly destroy and Godzilla kept the balance.

But then, a creature came from the stars, King Ghidorah, the first dragon. The 3 headed golden dragon sought nothing but destruction for the Earth and cause a divide in the titans. Some wanting balance, and others wanting to destroy. Godzilla grew to hate King Ghidorah and the 2 Alpha titans dueled in the fridge wastelands just beyond the Archipeligo. On glacier island. Thousands of years ago, Godzilla banished Ghidorah and sealed him inside the glacier but Ghidorah swore revenge before he was locked away.

Before Ghidorah was locked away, he produced the dragons on the Earth, creatures much smaller but still his children in a way. Dragons are aliens in this world. Godzilla was badly damaged by the battle and went to hibernate for thousands of years to heal, and before he wants to sleep, he commanded all other titans to hibernate as well. He hated dragons since they did not belong on Earth in his opinion. So when he is awakened into a new world where dragons roam everywhere. People live alongside dragons.

And some people have heard about the titans and Ghidorah and wish to awaken and somehow control the monsters. When Ghidorah is brought back and masses titans, dragon, and human army, can the combined efforts of Godzilla and his titans, Hiccup and the Berkians, and Toothless and his dragons stop the world from being plunged into darkness? This takes place after the second movie. Godzilla all the while has a grudge against dragons, can Hiccup Haddock somehow convince the King of the Monsters that Dragons can be forgiven?