The main dimension location of the SMG4 series. It is a universe where the Mushroom Kingdom is located, alongside other places like Inkopolis, Hyrule, Yoshi Island, Los Santos, Rockford, Port Aurora, and a vast number of other planets like Planet Tubbie, Rosalina's Comet Observatory, Planet Popstar and many other galaxies.

As revealed in SMG4: The Other Universe, it was created when Luke Lerdwichagul downloaded a Super Mario 64 emulator and someone expanded it into a whole universe.