I'm assuming everyone here knows about this and I'm late to the party (old chap) but I searched the forum and find no mention of 'gatsby'.
http://greatgatsbygame.com/Apparently this is a real game, an unpublished port from a Japanese game? The guy found it at a yard sale? I don't know, the whole thing reeks of fake backstory for an internet joke, but the game is surprisingly fun.
Also, I would totally buy this awful novel if it came with the cover for the game:
URL to share (right click and copy)