Dr Eggman has found a very powerful Meteorite that gives him and his bots extraordinary powers. He uses it to create a Zone Collider but when Sonic breaks it, large chunks of their world including themselves and in Adventure Bay. There was some of the cutscene scripts for the story.
Mario is familiar to disasters that happen in the Mushroom Kingdom, but when another one of his journeys goes interdimensional and meets the fuzziest and smallest herpes he has ever seen, this will be his wildest Adventure yet.