Suggested by Destroyer A Stegosaurus is a pretty intimidating animal. I dare say that it could defeat almost any current animal living on Earth, maybe even all of them. That being said, Gigan isn’t just any ole creature, he’s a full blown Kaiju. What are you going to do against that level of power? Gigan can teleport to dodge all of Stegosaurus’s attacks and just win from afar with his lasers. This plan is 100% foolproof. Gigan wins.