The only completed ones we have are the ones available on the site and two that I have pending for the MS (Vigilante and Zillion II). As long as the game in question isn't a ROM hack or other alteration of an existing game, it can be reviewed. We have reviews for after-market titles like Paprium and Xeno Crisis. There are lots of homebrew games that haven't been reviewed, including Sacred Line, Arkagis Revolution, and any of the Piko releases.