Umm... okay, this whole thing 
was   made   up   in   Dummy's 
imagination.  It's   like   an
interactive  dream.  It  shows
his thoughts, his dreams,  his
hopes,  his  fears,  and  also
his   corn!
 There's no real point, 
except to go into any doors
that you see. You'll know 
when you've won I'm sure.