It seems, like branches hanging off a single tree, each of these dimensions sprang from a common source. Destroy the source, and you would set off a chain reaction that would destroy Ninja Turtles everywhere, FOREVERMORE!
- The Shredder, Turtles Forever
Your mission is to rid the multiverse of that heinous Sonic and his pitiful friends in one fell swoop, by annihilating the only Sonic that matters: mine. Destroy Sonic Prime, and all puny blue pests in his likeness shall fall in a multiversal chain reaction! Every world, every dimension will crumble at our might as we remake the universe in our own true image!
— Dr. Eggman, Sonic Villains
