Inside Tokyo's electronics district, Akihabara, you'll find Super Potato. In short, Super Potato is a retro gamer's paradise, especially for those with fond memories of Japanese titles. The multi-level store is packed with nearly every older title and system under the sun. Famicom, Super Famicom, Mega Drive, Sega Saturn -- you name it, and it's there.
I made it my mission to find Super Potato and, within its walls, a copy of Vampire Savior, the third game in the Darkstalkers series that never came out in North America. Spoiler alert: I found it, along with a whole lot more.
Now I just wish I had remembered to look for Dungeons & Dragons Collection. There's always next year, right?