They are bombarded with killer cream pies from the User, who is a very grotesque looking clown. In the mean time, the decoding of Dot's password has yielded four columns. Bob and Dot end up in a room with mirrored doors. Bob tries opening one, but gets turned into a marrionette. It's all up to Dot now.
Dot climbs out of a hole in the ground.
It is the same size and shape of where the game cube used to be. The whole sector has been nullified, but Dot's still alive. The sky is an ominous gray, not blue any more. Dot sees that all the binomes now wear Megabyte's blue color. Checkpoint Charlie is for real now.