Oh darn - Microsoft changed their web pages AGAIN! ugh.

  Anyway, before the big latest reorg of Microsoft, they _HAD_ an
  Indie developers program for XBox.... 'til September '15.

  And in the documentation they had a fascinating, detailed
  overview of the types of illusions you have to create in order
  for your game to not be rejected by Microsoft.

  One was a few paragraphs explaining in great details what is
  allowed and what is not allowed in the character the player is
  controlling.

  I remember, for example, that you couldn't have your character
  "break the fourth wall" and turn around and start talking to
  you, for example.

  Man, I wish I saved that page before they zapped it. It was a
  deep look into the philosophy required behind FPS and XBox
  gaming philosophy in general.