My most unique game is this limited package for Digital Devil Saga released exclusively in Korea. Had to convince a korean seller on ebay to help me hunt this back in 2010, I think. He probably charged me much more than it actually cost, and I wasn´t sure he was actually gonna honor the deal, but the gamble paid off, I have never seen anyone else post about this release, even most avid Megaten collectors don´t know it even exists. Too bad the guy didn´t want to help me hunt other korean exclusive releases, to this day haven´t found anyone willing and the games keep getting rarer.
Ah yes, for those who do not know this series, it is a Shin Megami Tensei series spin-off released in two parts, so this is the only official release where both games came together as a bundle. As far as I know there´s a also "standard package" released in Korea, which is part of this LE, but haven´t been able to find good pics of it. By the way, my pics didn´t turn out great, the seal makes it hard to do direct shots, too much reflection, so had to angle it a bit.