Got to the end.  Neat little game, but what is the code?

Okay so I loved the atmosphere and uncanny feel in this game. And the old windows opening sounds and what sounds to be a VCR or a commador64 starting up reminded me of the werid old games that we used to have. I loved the glitch effects and overall feel of the old game - very reminiscent of atari. I found all the things and even found the thing you have to find after, but on the next ????? screen (with the "secret message in the top right) I kind of wandered off the screen and got lost. Was there any more to it?
(Again, awesome and atmospheric!)