You walk into your apartment and lay in your bed. As soon as your head hits the pillow, you suddenly are in a large dark room with multiple different doors. You are in a nexus-like area.

You are currently in your dream world. The doors are labeled 1-30, each with different decals. What do you do?

However, there most definitely will be other worlds in those 30 worlds that you can access from the nexus.

(Note that at any time, you can say PINCH CHEEK to wake up.)