AetherWolf said:
Rez?
Wait, that one was ported to Xbox Live... but still nobody really plays it.
Terranigma, then, an amazing JRPG that only came out in Japan and Europe.
Ah, the benefits of emulation!
People must've played Rez, since they're porting/have ported Space Channel 5 Part 2 to XBL and are making Child of Eden.
On a similar note: Vib-Ribbon. It was also only released in Japan and Europe, and it's surprisingly awesome. One of the first rhythm games to actually allow you to use your own music (in 1999! on the PS1! WHAT IS THIS SORCERY~), it has aged really well thanks to the cool vector graphics and awesome music.