Originally, the world was simply a replica of Noah's bedroom for him to live in. However, it was later expanded to include a full city with virtual residents. Eventually, Noah expanded it further until it included various environments and landscapes which he could control and manipulate at will. The numerous environments included forests, motorways, a canyon, a volcano and a castle. It was possible to move between these environments through portals which took the appearance of a wooden door. The exits to the real world were located in a virtual Domino City arcade.