In the reality of Steel Ball Run, an uncountable number of parallel worlds are assumed, each following the same basic chain of events. However, the Saint's Corpse exists in only one of these worlds, which is referred to as the "base world" (基本世界, Kihon Sekai). Though these parallel worlds would normally never cross paths with the base world, Dirty Deeds Done Dirt Cheap allows them to overlap and co-exist in the same place and time. It also allows its user, and anyone or anything its user desires