This power splits Mario into two, with both being controlled by the same person. At another part of the trailer, Mario is then split into three, with all still being controlled by the same person.
The first thought to this new power is that it could make things chaotic. On the opposite end of the spectrum, it could completely change the Mario formula by adding unique and diverse puzzles never-before-used in the franchise.
Super Mario 3D World has also been slated for a November 22nd release date in North America, with the European release coming a week later.