After Steve discovered the pause menu, he screwed around the menu and accidentally turned on creative mode. The world became flipped as Steve was the mastermind behind the world instead of just being the survivor like before. He managed to fly around and cause havoc ruining villages, ancient structures, the nether, and even the end! Steve created a huge house and flys around the world just screwing things up. But everything changed once you joined the server, spawning in the forest.