I put up a page on my site that goes over the unused content in all of my games, some of which I've submitted to NG (Josh Dumb, Crap OS, and JOSH DUMB 2)
If you're wondering why I haven't submitted my other games to NG, it's because they can't compile to html5. Also I've released the source code for all of my games on the page, except for Crap OS because I lost it :(