I've already invited aliens using the teleporter. Why don't I see them in the Alien Visitor Hall?

There are actually a number of rooms in the Alien Visitor Hall! Your alien visitor may simply be waiting in one that's farther away! Follow the steps below to search for them:

Walkr > Menu > Hangar > Aliens > Scroll down to the Alien Visitor Hall > Scroll left in the Alien Visitor Hall and you'll see some of the other rooms where your alien may be waiting!