Oh yeah, Rib Ribbon also. But only get it if you play using some kind of mod. If you swap discs to load it, you will only be able to play the tutorial levels. This is because to play the real game, you play it using your own music CDs and it generates the levels based on the music. Because of this, the PSX needs to be able to load the TOC of the audio disc to enjoy it.
What was the clone of that game Square released only in Japan? That game was Rez before Rez was Rez.
The table of contents thing reminds me of this crazy article I read back when I first got the Internet, and looking back on it it HAD to be a joke. The premise was simple, you could run Japanese games on your American system (I THINK it was PS1, not entirely sure), but the TOC had to be around 90% similar otherwise it wouldn't work, and even if it worked streaming music and cutscenes wouldn't play correctly because of the inconsistencies, and sometimes there would be freezes/lockups/crashes.
I didn't know whether to believe that or not, still don't, but I don't care as pretty much all of my games are in English and I prefer them that way.