Lex's journey was not smooth. Between meteors, tsunami's, spirit storms and being struck by random flashes of lightning, he faced many obstacles, but other than slightly getting on his nerves they had no effect.
Fortunately, though the planet was massive, Sim was not actually too far away. After teleporting through a few more regions, he appeared over what looked like an ancient, abandoned city, though now it was being occupied by contestants.
When Lex appeared in the sky, he saw the contestants running around the city, as if navigating some maze, in a rush to accomplish something. He wasn't sure what was going on, but that was not his concern.