A new game "camera pan" intro (excusing the placeholder title text):
This uses 3 rooms (title screen, full screen beach, beach with black HUD background) - the "pan" is done with config.follow and changing the center Y position, with the water tile as the overflow. Much simpler than using draw (which would probably have performance issues) or creating many rooms. I quite like the effect 
(The pan in the gif looks slightly choppier because of how I captured it, but you get the idea)