The title screen of the "Christmas Carol" game was painstakingly drawn by hand, a few pixels at a time, evolving over many iterations until the final composition came together. After each change, I would build the game code and take a screen-shot to study the progress.
This video shows the over 175 iterations that the screen design went through, sequenced in time to a beautiful rendition of "Carol of the Bells" performed by Emmy Rossum.