YES. That game is RARE. It's the hardest game I've ever tried to get. I found this site while looking for this game back in 2004. I was able to purchase it through a member here. Soon after I got the game in the mail. I saw the game on ebay, and it went for over $100. I've seen the game on ebay like 4 or 5 times since 2004, and it alway goes for over $100. I think in one auction the game went for like $150 or more.
The port is decent, imo better than the PS1 SS3 (never played the PS1 SS4). SS1 is a better port than SS2. I'd say SS1 is about a 95% port, and SS2 is about a 85% port. There's some extra options that are exclusive to this game. Like a demo mode where you can go into and see the computer execute combos, and secret special moves. The music is excellent, better than the NGCD; because (imo) it's louder and more crisp.
Beware! The loading times in this game are astronomical. The longest I've ever experienced. Even with the demo-cut option on it's still unbearable. I found out that the PS2 could speed up PS1 games' load times because of this game. (Press the triangle button with the Browser option highlighted) So with the Speed up load times option turned on, the loading times went from unbearable, to bearable.
Put a wanted thread up for this game like I did and see if somebody here will sell you this game. Or keep looking on ebay.